The most valuable types of gold
Gold is one of the rarest metals on the planet; since ancient times it has been considered a symbol of wealth, success and high position in society. In the periodic table D.I. Mendeleev calls it Aurum, that is, “golden,” and people also call it “noble.”
And this is no coincidence, because gold is an inert metal, practically does not enter into chemical bonds and does not form new compounds - it behaves like the noble strata of society. It is the inertness of the metal that determines its high cost and demand.
However, despite the “hostility” to other elements, scientists managed to create various types of gold, which are now used in many industries, from jewelry to instrument making. It is almost impossible to find it in its pure state now.
Gold content
In nature, gold is found not in the form of “shining” coarse rocks, but in the form of tiny inclusions, grains of sand, located inside the main gold-bearing rock. Sometimes grains of sand are so small that they can only be seen with the help of special equipment.
But there are also nuggets, the largest of which, “Welcome Stranger,” was found in Australia and weighed about 75 kg. And when gold was being mined in the Urals, a sample weighing 35 kg was found, nicknamed the “Big Triangle”.
But gold reaches the market only after multi-level purification. But even after enrichment, the raw material contains a certain amount of impurities. Because of this, the first types of gold appeared, which differed from each other in fineness - the percentage of metal in the product.
Gold assay systems
Government institutions use the purest samples of this metal as gold reserves. The percentage of the element in them is 99.999% per gram of substance. But a standard 1 kg bank bar contains 999 grams of metal. It is the cost of this bar, divided by a thousand, that can be observed on the gold and foreign exchange exchanges of the planet.
The gold purity is indicated on the product itself in the form of a small mark indicating very specific numbers. There are two sampling systems used in the world:
- Metric. Common in the CIS, European countries and Russia, numerical designations are used.
- Carat, used in the countries of the European Union and the USA. It determines the number of parts of gold that account for 24 parts of the alloy.
In the karat system, gold in its pure form (a percentage of more than 99.9%) corresponds to the 24th standard, and in the metric system – to the 999th. If on a gold product you notice a stamp with the numbers “750” or 18 carats, then the product contains 75 % noble metal. Jewelry of 585 standard is most common in the post-Soviet space. And the lowest-quality products are considered to be 9-karat or 375, because they contain no more than 37.5% gold.
In its pure form, gold is a very soft, ductile and malleable material that literally “melts before our eyes” and is difficult to process. To give the gold raw material its shape, various metals are added to it: silver, copper, cadmium, chromium, platinum and others. Thus, various types of gold, or rather its alloys, are obtained.
Depending on which element was added to the raw material, the physical properties of the alloy, as well as its color, are determined. The shade of gold items can be very diverse, ranging from gold, yellow and soft pink to dark blue, brown and even black. All this ultimately determines the cost of jewelry and its aesthetic qualities.
Yellow and white gold
Yellow gold is the most traditional and widespread alloy in the world. In it, silver and copper are added to the noble metal in different proportions. It is the amount of impurities that determines how much gold costs on the jewelry market. If the percentage of silver exceeds the amount of copper, then products of an even lemon color are obtained.
If there is more copper, then a red tint appears. The most common products on the market are 585 and 750 samples. White gold is considered the most expensive and beautiful alloy, which is not surprising. To obtain it, palladium or platinum is added, which is why the products acquire a whitish tint. In addition to color, the strength characteristics also change - they become higher.
For jewelry, 585 and 750 white gold is used.
Red and rose gold
Red gold is obtained by adding a large amount of copper to the alloy. In some products the additive content can reach 50% of the total weight. That is why all types of red gold are low in cost.
It looks good with red precious stones - rubies and garnets. To obtain a pink tint, 3 to 2 parts of silver are added to the alloys, along with copper. Color emphasizes nobility.
That is why this material is popular among many jewelry houses around the world that make jewelry for celebrities.
Green and blue gold
There are several ways to get green gold. The most common of them is the balanced addition of silver to the alloy. As this metal is introduced, the shade changes - the products acquire green, yellow-green and pure white. How much green gold costs depends on this. If the percentage of silver reaches 30%, then a new mineral is formed - electrum.
To obtain blue gold, steel or cobalt is added to the alloys. In the first case, the shade changes from light gray to cold blue. When cobalt is added, the alloy begins to acquire a bluish tint. Some jewelry houses achieve a similar effect by applying rhodium plating. Not all alloys that characterize what types of gold there are are presented here.
Black noble material, as well as its brown and brown shades, are also very popular in the world.
Source: https://FB.ru/article/295853/samyie-tsennyie-vidyi-zolota
What is the most expensive gold?
Eleanor Brik What is the most expensive gold in the world? And why can’t it be found in jewelry? You will find the answer to these questions in our article and learn many interesting facts about the most noble metal.
What is the most expensive sample?
The most expensive is gold of the highest standard, in which the content of precious metal is the highest.
Products of 999 standard have the maximum concentration, which contains 99.9% pure metal and only 0.1% impurities.
It is also estimated at 24 carats. But it is almost impossible to find it in jewelry. In its pure form, it is a very fragile material, it is difficult to process, and the products are impractical and short-lived. Despite its high value, it has a duller, unsaturated color.
Based on the sample, you can determine the percentage and find out which gold is the most expensive:
- Products of 985 standard contain 1.5% impurities. Due to its softness, metal is practically not used to create jewelry.
- The 750th sample contains 25% impurities. It has moderate strength and is easy to process.
- In 585 – 58.5%. This is the most popular composition, which has ideal strength and maximum shine and rich color. It does not fade and is widely used in jewelry.
- In 500 – 50%. It loses color after two years.
- In 375 – 37.5%. Durable and strong, but rarely used in jewelry, as it loses color almost immediately.
Where is pure gold found?
In rare cases, only pure metal inserts are used in jewelry, which jewelers have to frame with other, more durable ones, so as not to be subject to deformation.
Gold of the highest standard is used for jewelry in Arab countries and the Far East. Also, the purest products are produced in Japan, but in exclusive samples. The owners of such masterpieces sometimes put on the “treasures” only once in their entire lives, during the most solemn ceremonies, after which they are passed on by inheritance or melted down.
What is the difference between white, yellow and red gold?
In addition to color, composition also matters:
- Yellow is a traditional option that is widely used in jewelry. The composition also includes copper and silver.
- Red is obtained by adding copper and zinc. A significant amount of copper in the composition gives a rich red color. When palladium is added, the alloy acquires a brown tint.
- The white tone is provided by the presence of nickel, platinum, silver and palladium. A high concentration of silver gives a matte finish.
Is gold harmful or beneficial?
It is generally accepted that it has a beneficial effect on the human body, tones and adds strength, has a positive effect on the nervous and cardiac system, and lowers blood pressure.
But we must not forget that white gold can cause allergies, as it contains nickel. And according to statistics, every 8th person on the planet is allergic to nickel.
Since 2000, the European Union has allowed the production of white gold only with the addition of palladium.
Blue, green and gray gold - truth or myth?
In fact, in the jewelry industry, there are blue, green, gray and even black gold. Of course, it is not the most expensive gold in the world.
- To obtain a blue tint, 1/3 of steel is used
- For green - cadmium, copper and silver
- For gray - black steel in large quantities.
They are not used to make jewelry, but are used only as inserts due to their low strength and fragility.
November 20, 2014, 15:47
Source: https://sunmag.me/sovety/20-11-2014-kakoe-zoloto-samoe-dorogoe.html
the most expensive gold in the world: which metal jewelry is considered the most valuable?
There was a time when the valuable metal gold was difficult to extract, so it was considered a real luxury, worthy only of kings. Then its quality and rarity were checked by the simplest and most reliable method - heated over a fire to the breaking point. So, if the metal began to shimmer with red highlights, then the product was recognized as real.
By the way, this is how they invented the red shade of metal, which is yellow in nature. And in order to obtain a brightly saturated shade, zinc and copper (ligature) began to be added to the alloy.
Over time, to obtain various consumer shades, other impurities began to be added to gold, such as cadmium, silver, rhodium, cobalt, etc. All of them reduce the cost of the original expensive metal (but each to varying degrees) and allow you to achieve the desired color.
Now, due to the situation on the market, the demand for the product changes every day, and people have questions about how different types of this metal differ from each other, which sample is more expensive, what the purchase will lead to, etc.
Today we look at the most expensive gold samples in the world, dividing our review into an analysis by color. We will consider yellow, as the most popular, separately in terms of samples, since the latter indicator greatly affects the quality of the metal and its demand among consumers.
10. Green gold
Contrary to what many consumers believe, green gold is not some rare valuable metal that is mined using an exceptional method and costs a lot of money for it.
Any colored gold (and we remember that classic aurum is yellow) is a consumer alloy that has different decorative value depending on the impurities.
For example, green gold implies a combination of aurum and argentum (silver). This alloy was known in ancient times, and different proportions were used (75 gold to 25 silver, 58 to 38 + copper, etc.).
Green gold looks unusual, but is distinguished by its fragility and brittleness, the reason for which is silver. Its price is significantly less than the classic yellow and white, which is obtained with the addition of platinum rather than silver.
9. Blue Gold
Another type of consumer gold, the exquisite color of which is obtained after applying rhodium plating (cheap in itself) or adding cobalt to the alloy.
The author of the technology is jeweler Antoniassi from Argentina. Also an important component of blue gold is iron (steel), and the alloy is formed in a ratio of 3 to 1 or 2 to 1. Accordingly, an alloy of 72 and 62 samples is obtained.
Based on the size of the sample, you can judge that the price of gold mixed with steel cannot be high; on the contrary, it is one of the cheapest and is not always considered a precious metal.
8. Red gold
Just not to be confused with elite red gold, which has long been considered one of the highest quality. Red gold and its shades (pink) are obtained by adding copper to gold. Most often represented by 585-carat gold.
Among jewelry, we note that red gold is the most popular. As for the price, it is much inferior to traditional yellow gold due to the addition of copper to the composition (and the more of it, the cheaper the jewelry will be).
7. White gold
This metal is considered one of the most elite, since not cheaper, but rather expensive components such as zinc, palladium and silver are added to gold. natural aurum reaches 59%.
It goes well with diamonds, sets off the beauty of emeralds, sapphires and rubies, and always pleases with its impeccable glossy shine. All these qualities determine the high cost of white gold (although the price is periodically inferior to yellow, depending on the market situation).
It is noteworthy that lowering the fineness increases the strength of gold, so manufacturers periodically add 500 or 375 fine gold to the alloy.
But 750 white gold is obtained by adding platinum to the alloy, but it is not intended for daily use, although it does not corrode and does not darken at all, unlike silver.
6. 375 sample
Let's move on to a review of traditional yellow gold , which, as is known, is divided according to quality characteristics, as evidenced by samples.
The smallest sample of 375 indicates that the alloy contains only 37.5% of pure aurum. The rest share copper and silver among themselves, which ensures the strength, reliability and durability of the product.
Unfortunately, such metal loses its natural color and gloss, looks faded and unkempt, and therefore is extremely rarely used for the production of jewelry. This sample is rightfully considered the lowest and cheapest , which also corresponds to 9 carats.
5. 500 sample
This alloy is distinguished by a 50% aurum content, and the remaining half is supplemented with the alloy metals mentioned above, which increases the strength, but worsens casting performance.
Products with 500 purity are rarely put on the shelves of jewelry stores; the alloy is mainly used for inlaying icons, picture frames, luxury interior elements, luxury smartphone cases, etc.
After a couple of years, products made from such gold darken and lose color saturation, so it is not advisable to purchase 500-carat wedding rings, even if the price is tempting.
4. 585 sample
A fairly popular alloy sample among consumers, which provides it with optimal characteristics: the necessary hardness and strength, glossy shine, richness of shade.
Products made from such gold do not darken over time and retain their shine. Hallmark 585 corresponds to 14 carats. The alloy contains, in addition to the materials described above, palladium and nickel, and these are already expensive metals that increase the quality of the final metal.
By the way, depending on the concentration of other metals in the alloy, you can get a light white or red tint of traditional yellow gold.
It is this sample that is the gold standard in the domestic market of precious metals, and is also common in foreign countries. Price and quality are optimal.
3. 750 sample
This alloy contains 75% pure yellow aurum, which is a very high figure. Among the alloy metals, nickel, copper and silver are still noted, and platinum is also added. Thanks to the obtained characteristics, 750 is perfectly processed by jewelers, maintaining sufficient strength for daily wear.
The color can vary from lemon yellow to shades of red. Such gold is already considered prestigious, has a high price and is most common in European countries and Egypt .
2. 985 sample
This alloy consists of 85% natural aurum and has a corresponding value of 23 carats. It is rarely used for jewelry production due to its high softness and tendency to lose color saturation over time.
However, products made from high-quality 985 , despite their high cost, are common in Arab countries, Pakistan and India, where women hang themselves with products from head to toe.
1.999 sample
The most expensive traditional yellow gold is 999 , since it contains 99.9% natural aurum and only 0.1% is allocated to alloy components. The fineness is estimated at 24 carats.
It is extremely rarely used in jewelry, as it has a faded color and soft consistency, and is deformed. However, manufacturers of iPhones and luxury cameras use such metal to cover exclusive models.
We hope that the information about the price and types of gold was useful and relevant for you.
Source: https://top10a.ru/samoe-dorogoe-zoloto.html
The most expensive metals in the world: from rhodium to California-252 | SOKOLOV Magazine
Experts divide these metals into two groups: natural and artificially produced. The first group includes rhodium, platinum, gold, osmium and ruthenium. The second consists of two chemical elements - californium and osmium-187.
Rhodium
$225 per gram
One of the rarest on Earth. Silver-colored metal with strong reflective properties. There is an external resemblance to aluminum, but rhodium is much harder. It has high chemical resistance and is an excellent catalyst, which determines its main use in the chemical and automotive industries. In jewelry production, rhodium is used in the final processing of products.
Platinum
$70 per gram
Silver-white metal. Previously, due to its refractoriness, it was valued lower than silver. The metal has not been found in its pure form on Earth. Most often, platinum is found in the form of alloys with other metals. Platinum is isolated through a complex chemical process. Along with jewelry production, platinum is used in the electronics and medical industries. Also used for making coins.
Gold
$30-40 per gram
Main precious metal. It is found in the depths only in a pure state. The malleability, strength and anti-corrosion properties of gold make it an indispensable chemical element for the production of jewelry and bank coins, and determine its use in the electronics industry and dentistry.
Osmium
$19 per gram
Silvery-white shiny metal, not found in the depths in its pure form. It has a specific odor and very high density. Very fragile. Used in the chemical industry (catalyst) and pharmacology.
Ruthenium
$15 per gram
Named after Russia (lat. Ruthenia - Russia), the silver-gray metal is very rarely found in the depths. Its properties include simultaneous hardness and brittleness, as well as refractoriness. High purity ruthenium has not yet been obtained. The characteristics of ruthenium make it in demand in jewelry production, the chemical and electronics industries.
Californium
$6,500,000 per gram
There are several isotopes of californium, with californium-252 having the greatest practical application. Radioactive californium stands apart even among the most expensive metals. This is explained both by its huge price and special properties. The energy released by one gram of californium is comparable to the power of a conventional nuclear reactor.
Several milligrams of the metal are produced annually, and the total amount of Californian produced over all years does not exceed 5 grams. The main application is scientific research in the field of nuclear physics and medicine.
Osmium-187
$200,000 per gram
It takes 9 months to obtain this metal. The dark powder of osmium-187 has the highest density of any substance known. Practical use is being studied. Osmium-187 is of scientific research importance and is used to create individual high-precision devices.
Source: https://sokolov.ru/blog/about-jewelry/precious-metals/samye_dorogie_metally_v_mire/
The most expensive metals in the world: rating with cost indication
Investing in metals has always been profitable, especially if it is gold and silver. It is believed that gold is the most highly valued. This is not entirely true.
Prices for natural resources are determined by the market. Supply and demand play a role, as do other factors. We present the ranking of the most expensive metals in the world.
What affects the price of metal?
The price of metal is determined based on the results of trading. Transactions are carried out on the stock exchange, which serves as a kind of marketplace for buyers and sellers. Anyone involved in metal products can monitor price changes in real time.
There are several exchange platforms in the world:
- in London;
- in Tokyo;
- in Shanghai and other cities.
The number of deposits of a particular substance on the planet is of great importance in determining the cost of metals. In addition to the common iron ore and aluminum, rare ones are also found. An increase in demand for such products increases their price. Let's find out how much the most expensive metals cost.
Top most expensive metals
Substances of this group are necessary for humanity. They are widely used in the production of key products:
- alloys (used everywhere, have strength);
- tools;
- conductors of electric current.
If at the beginning of the last century humanity knew about the existence of 65 different elements of the metal series, in the 21st century another 31 were added to them. Among the most expensive in the list presented below will be those discovered by scientists several years ago.
10th place – Ag (silver), $0.5 per gram
Silver has been known to people since time immemorial. The main reason is its presence in the upper layers of the earth in the form of nuggets. Among its properties: plasticity, malleability. It has a light color and a silvery sheen.
Silver in coins and bars
The largest deposits of silver are located in North America. To a person who is far from technological innovations, it may seem that metal is mainly used to make jewelry, spoons and coins. In fact, silver is widely used, using its properties of high electrical conductivity and as a catalyst in chemical oxidation reactions. Silver is also used to disperse clouds.
At the end of 2018, one troy ounce of silver (31.1 grams) costs $14.84 on the New York World Exchange.
9th place – Ru (ruthenium), $2 per gram
Ruthenium was discovered by Professor Klaus, who taught in Kazan at the end of the 19th century. He isolated the pure element from platinum ore brought from the Urals. The name of the element repeats the Latin “Ruthenia”, which means “Rus”. It is actually a platinum metal.
There are three ways to obtain a pure substance:
- from technetium nuclide with mass number 99;
- when purifying platinum from impurities;
- when processing nuclear materials (significant amount).
On exchanges it is traded at $60-65 per troy ounce. Used as a catalyst, in alloys, for resistors and ion channel studies.
8th place – Sc (scandium), $3.4 per gram
The silvery metal scandium is light in weight and has a yellowish tint, by which it is easily recognized. It was first announced by a chemist from Sweden, Nilsson, so scandium received its name in honor of an entire region in northern Europe.
One isotope of the substance is known. It is used in alloys to increase electrical conductivity, in robotics, in the production of weapons, and to obtain materials of increased strength. The properties of the element are not fully understood, but scientists call it the metal of the future.
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It is predicted that scandium will strengthen its position in the ranking of the most expensive chemical elements.
7th place – Re (rhenium), $4.7 per gram
This position is occupied by the expensive and rare metal rhenium with high density. Named after a large German river - the Rhine.
Rhenium in ingot and cubic form
Mendeleev called it trimarganese, but it was discovered in the first quarter of the 20th century by chemists from Germany. Obtained by isolation from raw materials:
In deposits of different countries you can find no more than 13,000 tons. Demand for rhenium is recorded annually, as it is necessary for the creation of aircraft and missile components. The substance has a high melting point of 3186°C. Contacts made from this expensive element clean themselves and last longer than others.
6th place – Pd (palladium), $19 per gram
Platinum will be discussed below, but another metal was extracted from its ore - palladium. It is lightweight, similar in appearance to its counterpart, but very flexible.
Palladium is widely used in jewelry making
It is noteworthy that palladium is rarely found in the crust of the globe; it is used in the manufacture of coins and jewelry, in electroplating, and in medicine. This substance is mined in Russia (Norilsk), eastern Canada, and South Africa.
5th place – Rh (rhodium), $27 per gram
Silvery shiny metal with a pinkish tint is in great demand in the world. Like palladium, it was discovered when working with platinum.
Alloys with rhodium have a characteristic pinkish color
Not only is it rare and expensive, but it is also scattered. This means that it exists only in the form of an isotope. It is impossible to find a rhodium nugget. The price is affected by demand and the lack of large deposits. The connection between rhodium and gold and another metal, iridium, is known: osmic iridium has the highest content of this expensive substance.
4th place – Pt (platinum), $30 per gram
The oldest platinum products were found in South America in the foothills of the Andes. From there it was brought to Spain. In Russia, the expensive element was found in the Urals during gold mining. Even in ancient times, people learned to distinguish platinum from silver, revealing extraordinary refractoriness.
Platinum is an inert element. It can only be dissolved in a concentrated mixture of nitric and hydrochloric acid (aqua regia) and bromine. The substance is widely used in industry. It is used to make electrodes, parts for microwave ovens, and laboratory glassware. Used in the production of jewelry.
3rd place – Ir (Iridium), $35 per gram
A dense, expensive and very rare metal found in meteorites. The discovery of iridium belongs to the Englishman Tennant. About 3 tons of the substance are mined annually around the world.
Iridium has two stable isotopes. The element is used for various purposes:
- in the manufacture of automotive engine parts;
- for nuclear reactors, including in Russia;
- in paleontology;
- for rocket fuel tanks.
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Does not corrode even at high temperatures. The price in the markets fluctuates and can reach $45 per gram, which is higher than gold.
2nd place – Au (Gold), $40 per gram
Gold is more attractive than other rare metals because it has a characteristic yellow color. It is one of the most expensive and in demand in the world: it is used in the chemical and electronic industries, for making jewelry, and in dentistry. The best children's and ladies' jewelry is made from 750 gold.
55 thousand tons of expensive metal are today in safe deposit boxes and bank vaults as savings and government reserves. Just as oil deposits are valued today, so have mines been valued at all times.
1st place – Cf (californium)
It's time to find out which metal is the most expensive in the world. His name comes from the state of California. At the University of Berkeley it was created artificially. California is the most expensive metal on earth. This is due to the following reasons:
- rare, not found in the earth's crust (produced in the USA and Russia);
- It takes 8-18 months for production.
The production time for 1 gram of Californian can reach 1.5-2 years
To isolate, the transuranium element curium and the radioactive plutonium must be placed in a nuclear reactor and irradiated. Everything that remains after a few months is subjected to chemical attack. Californium is also called the most expensive precious metal in the world, although it is not used to make jewelry. The fact is that it is used to treat tumors. The element is also used as a source of neutrons.
There are 8-9 grams of metal stored in the world. The price of the most expensive metal in the world is $250 million per gram.
Source: https://infografics.ru/all/samye-dorogie-metally/
Which country has the cheapest gold? how much does gold cost in turkey and uae
- November 29, 2018
- Tips for tourists
- Ahi Svetlana
Gold can be called the most insidious and deceptive metal. Over the centuries, crimes have been committed and wars have started because of it. But in its pure form the metal is very fragile.
To make gold durable, man learned to add minor elements to it. But they do not devalue jewelry. Every year the price for them increases. The cost of precious metal differs in different countries. Let's find out where the cheapest gold is in the world.
In which country can you buy jewelry at a profit?
Kinds
The classification is simple:
- White gold.
- Yellow.
- Red.
Products made from white gold are valued higher. Noble metal is made from expensive impurities. They determine the high cost of jewelry.
The whitish color of the noble metal is not created with the help of platinum, as many believe. White gold is produced by adding impurities of nickel, copper, zinc and silver to a natural element. All of them increase the strength of the precious product. White gold comes in two types: noble and ordinary. In the first type, jewelry makers add expensive metals. The second one includes nickel and copper impurities. Therefore, prices for white gold products may vary significantly.
Yellow color is the natural shade of the noble metal. How much is gold worth? If we compare products made from yellow and white metals, the former will be significantly cheaper. This is because yellow gold is soft. Fine jewelry made from it will be fragile: they can easily be damaged in everyday life.
Red gold is obtained through complex processing of natural metal. This product is durable. It does not fade and does not lose its attractiveness when worn. However, fashion dictates its own rules. Jewelry made from red gold is valued less than its counterparts made from yellow metal. Its value is also affected by the fact that red gold is more difficult to combine with precious stones. And this reduces its price. Red is the cheapest gold.
In which country it is more profitable to buy precious metals, we will consider below.
Samples
In its original form, the noble metal looks completely unattractive. Natural gold has many disadvantages. Among them: susceptibility to corrosion, mechanical damage, dull, inexpressive color. To correct the situation and obtain a “perfect” piece of jewelry, silver and copper are added to gold. To improve its quality, zinc and palladium are used.
Many believe: the higher the purity of gold, the more valuable, durable and better quality it is. But that's not true. The higher the metal standard, the lower its strength. There are 6 main samples of gold.
- 375 is 9 carats. It contains about 37% pure gold. The rest is silver combined with copper. Such products are considered the most durable. But they are also cheaper due to the fact that they quickly lose their attractiveness: they fade over time.
- 500 – 12 carats. It contains 50% pure natural metal. Such products begin to fade after 2 years.
- 585 – 14 carats. This is the gold standard. The jewelry contains about 58% pure gold.
- 750 – 18 carats. 75% consists of natural metal. Products made from it are characterized by moderate strength.
- 958 – 23 carats. Jewelry includes 95% pure gold. They look chic but are soft; Because of this, they quickly scratch and break.
- 999 – 24 carats. Rare high-grade alloy. It is used as inserts in jewelry.
How much does 375 and 585 gold cost? It all depends on the alloy used and the country of manufacture. The price difference in the above samples will be about 30%.
The rarest metal in the world
This is rhenium. The metal is in the Guinness Book of Records; in the periodic table it occupies the 75th atomic number. In industrial circles, rhenium has a high value. It is used for the manufacture of high-precision equipment.
Getting a rare element is not easy. On earth it is obtained from copper and molybdenum ores. But for this, the concentrate needs to be burned. This procedure is very complicated and expensive. To obtain 1 kg of rhenium, you need to process at least 1000 tons of ore.
Where is the cheapest gold
Currently, global gold reserves amount to 3 billion ounces. Where can you buy the cheapest gold in the world? Answer: North America. In this country, the production of precious metal does not require large material and labor costs.
And on the African continent, gold will be 2-3 times more expensive. This is explained by the labor-intensive process of its extraction. The noble metal in Africa is found deep underground. To extract 1 small golden ball, you need to dig up about 9 tons of soil.
Africa ranks first in gold production in the world, North America is second, Australia is third, and Asia is fourth.
The most expensive gold
Russian jewelry differs from its European counterparts. Gold items with a red tint remain popular among Russians. They look decent and have good durability. Imported jewelry is made from other alloys. They are more expensive, have a higher standard, but are also fragile. As a rule, Europeans wear them for festive events. But this does not mean that gold is the cheapest in Russia.
We will find out below in which country products made of precious metal can be purchased profitably. In the meantime, let’s find out where the most expensive gold is sold. It is mined in Scotland at the Cononish mine. It is the most valuable type of precious metal in the world. 1 ounce costs $1,400. Scottish gold is highly valuable due to its brightness, rarity, and purest yellow color. It is mined in dangerous conditions.
UAE
Dubai gold is in demand among Russians. And all because the jewelry of this country is high-quality and inexpensive. Gold in the UAE is sold everywhere: in large shopping centers, small shops, and on the market. Many jewelry items are marked 18K, which corresponds to 750 purity.
Dubai gold is considered inexpensive. For example, small white gold stud earrings cost an average of 500 dirhams (about $136). And this is just the starting price. Local sellers like to haggle with them, so you can buy jewelry more profitably.
Türkiye
Many people compare Turkish gold with European gold. It looks gorgeous at a relatively low cost. But there is a nuance here. Firstly, gold is not mined in Turkey. Local jewelers only make amazingly beautiful jewelry from precious metal.
Secondly, the alloy of Turkish jewelry is not of high quality. Craftsmen add only copper to natural metal, ignoring silver. Their final product is a beautiful yellow hue, but it is lighter than its Russian and European counterparts.
Such gold is susceptible to weathering; it quickly begins to fade, losing its “presentable” appearance.
Where is gold cheaper: in Turkey or OJSC? 1 gram of precious metal in Turkey costs from 7 to 12 dollars. Therefore, gold jewelry will be cheaper there. But their quality is inferior to Dubai jewelry.
How to buy gold jewelry profitably?
We found out where the cheapest gold is in the world. Let's define the main points that you should pay attention to when buying jewelry. Finally, a few tips:
- Do not fall for the tricks of jewelry stores about sales and huge discounts. This is a marketing ploy, the purpose of which is to attract the largest number of buyers. As a rule, the price including the discount is the old inflated cost of the jewelry.
- You should be careful when choosing gold jewelry. Before purchasing it, you need to compare the price in different stores. As practice shows, the cost of the same product differs at different retail outlets.
- Sellers often divert buyers' attention from inflated prices by providing them with a lifetime warranty on the jewelry. This is also a publicity stunt. And we need to remember this.
- Jewelry stores often sell gold jewelry at prices that are 2-3 times higher than wholesale prices. Therefore, it is appropriate for the buyer to ask for a discount of at least 10-15%. Especially if the decoration is really expensive.
A person strives to save money, so he will always look for high-quality, but at the same time the cheapest gold. It doesn’t matter in which country he buys the jewelry. The main thing is not to succumb to excessively low prices, but to choose a high-quality metal alloy. Gold prices are the most important economic indicators. History proves that the yellow precious metal is eternal. Therefore, gold jewelry will always be in price.
Source: https://gkd.ru/429987a-v-kakoy-strane-samoe-deshevoe-zoloto-skolko-stoit-zoloto-v-turtsii-i-oae
The best standard of gold: what is it?
The global gold market now has a huge supply of both jewelry and precious metals for investment.
With all this diversity, consumers are often interested not only in the appearance of jewelry, but also ask the question: what is the best standard of gold? The domestic jewelry industry uses 999, 958, 750, 500, 585, 375 yellow metal markings.
To decide which gold standard is the best of all the above, you need to compare the advantages and disadvantages of the alloys that are used in the manufacture of various jewelry.
Products made from precious metals are a good way to preserve your funds. The main advantage of jewelry made from yellow metal is its virtually unlimited service life, which does not affect the quality and its main characteristics of the jewelry, such as color and strength. Lost shine can always be restored. The biggest disadvantage is the rapid loss of relevance and popularity of the decoration design.
The yellow metal of each sample has corresponding characteristics. Let's try to understand the most popular types on the Russian market.
Modern samples
375 the alloy contains no more than 38% pure precious metal. The ligature is mainly an alloy of copper and silver. Jewelry of 375 standard is especially durable, but very quickly loses its original shine.
Due to the high amount of copper they are prone to tarnishing. In the karat system, this gold is identical to 9 carats. Its cost is the lowest. According to many people, the best standard of gold is 999.
For products made from it, the opposite is true - the alloy remains bright and shining for a long time, but often bends and scratches.
500 – the alloy contains 50% pure precious metal, which is equal to 12 carats. Jewelers do not like to use it, since the alloy has poor casting ability. The shade of this alloy depends on the content of silver and copper in its composition, which is an additional difficulty in the production of jewelry. Products made from this gold sample fade a little after several years of use. Yellow metal 500 has a low price.
585 try. The composition of the alloy contains 58 and a half percent of pure precious metal, the rest is made up of alloy metals - nickel and palladium, silver, copper. It is more durable and does not become dull after a while. Gold 585 corresponds to 14 carats. The low cost of 585 gold products makes their purchase accessible to consumers with any wallet, so many rightfully believe that this is the best standard of gold.
The addition of alloy metals makes it possible to obtain different colors of 585 standard: red, white or green. This precious metal is a kind of gold standard in the jewelry industry of Russia and other post-Soviet countries. Previously, this standard was the old, one might say the best gold standard for that period - 583, which was replaced in 1995 by the 585th.
750 - has an alloy of 75% pure gold and other metals - copper, silver, platinum and nickel. It corresponds to 18 carats. The precious metal in these products is moderately strong and has good malleability, which is convenient for jewelry processing.
Due to the high content of pure gold, products are not only prestigious, but also not cheap. The high cost makes jewelry made of 750 standard unaffordable for many consumers of the yellow metal.
958 – a high-quality alloy containing 95.8 shares of pure gold, which corresponds to 23 carats. The hue of 958 gold is almost indistinguishable from the color of pure yellow metal.
Jewelry has a very soft structure, so it quickly loses its beautiful appearance and is subject to rapid scratches and chips. The jewelry industry does not often make items using 958 alloy.
The cost of such gold is quite high and almost identical to the price of pure metal.
999 – the highest of all, corresponds to 24 carats in the international carat system. This alloy is never used by jewelers. Sometimes in jewelry, a precious metal of this standard is used in the form of various inserts, which are surrounded by more durable and wear-resistant gold, usually a 585 alloy. The price of 999 is the highest of all that jewelers use.
Which samples are preferred in different countries?
In Europe, there is a carat system in which one carat corresponds to one twenty-fourth of the gold in the alloy. In the countries of the former USSR, the metric system is used to determine mass when pure gold in an alloy is measured in grams.
Now in Russia and Ukraine, many jewelry connoisseurs prefer 585 standard, much less often 750. In Europe, on the contrary, products with 750 and higher are popular.
Gold 585 is popular only in the former USSR countries; 750 is preferred abroad.
In Italy, products of at least 750 standard are quoted. Although these jewelry are certainly beautiful, Italians do not wear them every day, but limit themselves to costume jewelry and decorate themselves only on special occasions.
750 gold standard, accepted in the Russian Federation, differs from the European standard. The ligature of this alloy in Europe contains a larger amount of silver, while ours contains more copper. Therefore, our gold is red in color and more durable, while European gold is more yellow in color.
The law in Switzerland prohibits the sale of products less than 750 fineness.
Any piece of jewelry in the Russian Federation or abroad must have a stamp that contains information about the corresponding hallmark. And in some countries, jewelry also contains information about the manufacturer.
When deciding to purchase jewelry or invest in gold, you must first of all decide what grade of gold is preferable. It is better to buy products by first studying the typical composition of jewelry in the country in which the purchase will be made.
It would be useful to inquire about the composition of the alloy and the amount of impurities in the jewelry, so that in the future it will not only be a beautiful decoration, but also a profitable investment.
It will also be useful to find out which precious metal is better to buy: gold or silver?
Source: http://golden-inform.ru/proby/zolota-kakaja-luchshe/
19 most expensive substances in the world
In various spheres of life, humanity uses incredibly expensive substances found in nature and created by science. These include cosmetics, drugs, gems and much more.
Here is an interesting list of the 20 most expensive substances in the world.
Risotto with white truffle. Flickr/Blue moon in her eyes
19. White truffle
Wikimedia Commons
Cost: up to $5 per gram or $2000 per pound.
This is a seasonal mushroom from the genus of marsupial fungi with an underground location of the fruiting body. Truffles are used to prepare a variety of dishes.
18. Saffron
Wikimedia Commons
Cost: $11.13 per gram or $5040 per pound.
Saffron is a flowering plant whose dried stigmas have been used since ancient times as a spice and orange food coloring. In addition, saffron is widely used in medicine in the treatment of various ailments: from depression to menstrual irregularities.
17. Iranian beluga caviar
Wikimedia Commons
Cost: $35 per gram or $1000 per ounce.
It is also known as "Almas". Caviar is eaten cold, placed in small portions on unsalted crackers or bread.
16. Gold
Edible Gold
Cost: $39.81 per gram.
This expensive metal is valued not only in jewelry. Gold has high electrical conductivity and is resistant to corrosion.
15. Rhodium
en.wikipedia.org
Cost: $45 per gram or $1270 per ounce.
Rhodium is a noble platinum group metal with a silvery-white color. It is used primarily in car catalytic converters to reduce carbon emissions.
14. Platinum
Wikimedia Commons
Cost: $48 per gram or $1365 per ounce.
Platinum can be used as a catalyst in scientific experiments or to make jewelry. It is also included in anti-cancer drugs.
13. Rhino horn
Wikimedia Commons
Cost: $55 per gram or $25,000 per pound.
There is a belief that rhinoceros horn can even cure cancer. It is used in the preparation of a potion intended to treat fevers and other ailments.
12. Crème de la Mer
Nordstrom
Cost: $70 per gram or $2000 per ounce.
There are legends about this cosmetic product. They say that many celebrities apply this miracle cream to themselves every day to maintain their youth.
11. Heroin
Wikimedia Commons
Cost: Pure heroin can cost up to $110 per gram.
Heroin is an opioid drug. It is administered intravenously, snorted or smoked, despite the fact that the substance can cause convulsions or coma.
10. Methamphetamine
Wikimedia Commons
Cost: $120 per gram or $1600 per ounce.
The drug causes a euphoric effect and is highly addictive. Methamphetamine is popular among teenagers.
9. Crack cocaine
Valerie Everett/Flickr
Cost: up to $600 per gram.
Crack is a crystalline form of cocaine that is a mixture of cocaine salts with baking soda or another chemical base.
8. LSD
Wikimedia Commons
Cost: The crystalline form of LSD costs about $3,000 per gram.
This is a psychoactive substance that causes hallucinations. It was especially popular in the 1960s.
7. Plutonium
Cost: approximately $4000 per gram.
Plutonium is a radioactive metal. It is used in the production of nuclear weapons, fuel for nuclear reactors, and as an energy source for spacecraft.
6. Taaffeit
The Gem Trader
Cost: from $2500 to $20,000 per gram or $2400 per carat (1 carat = 0.2 grams)
Taaffeite is a rare lilac mineral. This gemstone is found a million times rarer than diamonds. It is used in jewelry.
5. Tritium
Wikimedia Commons
Cost: $30,000 per gram.
Tritium is a super-heavy hydrogen that is used in clock illumination and signage.
4. Diamonds
Wikimedia Commons
Cost: A colorless gemstone can cost $65,000 per gram or $13,000 per carat.
Most often, diamonds are used in jewelry.
3. Painite
Wikimedia Commons
Cost: $300,000 per gram or up to $60,000 per carat.
Painite is a mineral from the borate class. It is considered the rarest of minerals. Supporters of traditional medicine are confident that painite crystals successfully relieve infectious diseases and have a beneficial effect on digestion and blood circulation.
2. California
images of elements
Cost: $27 million per gram.
Californium is a radioactive chemical element. There are 17 known isotopes of californium. Isotope 252 is used in devices designed to search for layers of oil and water in wells.
1. Antimatter
Wikimedia Commons
Cost: $100 trillion per gram.
Antimatter is known as the most expensive substance on Earth. A possible area of its application is the fuel of spacecraft for flights to distant planets and stars.
+ The most expensive medical product: Soliris (“Soliris”)
Medical Claim Legal
Cost: $5,000 for a 30 ml bottle.
Soliris is considered the most expensive pharmaceutical drug in the world. It is used to treat a rare, life-threatening disease that rapidly destroys red blood cells (erythrocytes). An annual course of treatment can cost $569,000.
Source: https://cameralabs.org/9524-19-samykh-dorogikh-veshchestv-v-mire
the most expensive coins in the world: TOP 7 gold coins, the value of which exceeds 1 million dollars
Today there are many ways to profitably invest your money. One of the most reliable and common is to buy gold coins. They do not lose value, do not become obsolete, and do not require special storage conditions, with the exception of safety measures. Their price increases every year, especially if a rare specimen gets into the collection. There is a ranking of the most expensive gold coins in the world, and the numbers appearing on this list are amazing.
Not listed below is one of the most valuable gold coins, called the Red Kangaroo. The fact is that it did not change its owner, and, therefore, its market price was not determined and announced. There is every reason to believe that it will exceed the value of other rarities.
The Red Kangaroo coin is 80cm in diameter, 12cm thick and weighs approximately a ton. The total cost of gold used to make the giant is $50 million.
This exhibit is on public display in one of the cities of Australia - Perth, and was released recently - in 2011.
Dinar Hashimi
So, the rating opens with a rarity of Arab origin - Dinar Hashimi. The approximate release date of the coin is 737, the cost is 1 million dollars . Despite its exceptional rarity and venerable age, the price of the rarity has not exceeded a million, but over time its value has been steadily increasing.
At the time of their circulation, gold dinars were not rare, but only a few have survived to this day. Historians believe that if it were not for the pilgrimage of Umar ibn Abd al-Aziz, they would never have fallen into the hands of European and American collectors, but this is an assumption not based on facts.
The irregular shape, uneven edges, and Arabic script on the obverse and reverse distinguish this coin from products produced in Europe and the USA.
Double Eagle with relief
The coin was made in 1907, the last value is 2.99 million dollars . Today we know of several surviving copies; the rarity of the rarity is the first reason for its high cost.
The second is the unusually fine, detailed elaboration of the coinage, as well as the high relief of the image. The production of these coins was highly labor intensive, and over time the cost of the products increased significantly.
The Double Eagle with relief was last offered at auction in 2005.
Single 9
The last price of the coin is 4 million dollars . The history of its production is fascinating: during the Boer War, South Africa did not have the opportunity to produce a new stamp with the date 1899, and the government decided to use last year's stamp, correcting the date on it, for which the stamp was sent to Germany.
However, due to the war, plans had to be changed, after which the mint staff simply stamped the number 9 at the end. The prototype was released in a single copy, then all items were dated correctly, and this coin acquired exceptional value.
Collectors gave it the name Single 9, and its unusual history, the kind that numismatists love, contributed to an increase in value.
Elizabeth II 2007
Another gold coin with a value of 4 million dollars . In fact, it is an ingot of precious metal, decorated accordingly. This product was released by the Canadian Mint, and, unlike other funds, you cannot put it in your wallet.
This is hampered, firstly, by the huge weight (it is about 100 kg), and secondly, by the impressive dimensions (circumference diameter 53 cm). For production, pure gold with a purity of 999 was taken, the face value is 1 million dollars, and, surprisingly, it coincides with the cost of production of the product.
As for the design, it is quite simple: the profile of Elizabeth II is engraved on the obverse, and the denomination is stamped on the reverse. Currently, the millionth coin is in a private collection, and before that it was exhibited in one of the Viennese museums.
Florin of Edward III
The last time the item was put up for auction was Spink, where its value was determined to be a fantastic sum of 6.8 million dollars . This example has a truly impressive age; gold double florins of this coinage were in circulation in 1343-44.
Despite its age, the clarity of the engraving allows one to see King Edward III on the obverse, taking his rightful place on the throne, as well as details of the luxurious decoration of the palace hall. The production technology in those days was imperfect, for this reason the edges have unevenness and the edge is missing. Its second name is Double Leopard, the nominal value is 6 shillings.
In total, there are three copies of Edwards known in the world; the year of their manufacture is 1343. The rarity is explained by the fact that during production the denomination did not correspond to the weight and the entire circulation, with the exception of a few pieces, was confiscated.
Brasher's Doubloon
The cost of this gold coin is slightly less than that of the example described below; its last sale was carried out for 7.4 million dollars . The rarity is very rare, and its name was given by the name of the creator who developed the design of the coin.
Ephraim Brasher lived in New York in the 18th century and was engaged in jewelry making. All of his products bear the initials “EB”. The obverse is decorated with a traditional eagle, and the reverse features a magnificent mountain landscape.
Brasher's doubloon is not the only one in the circulation, but the number of such coins is extremely small, which also affects the increase in value.
Double eagle
The ranking of the most expensive gold coins in the world is completed by the Double Eagle. The event that resulted in the rarity gaining its value was the ban on gold ownership, introduced in the United States in 1933. It concerned all citizens of the country, and the coins issued by that time had to be melted down.
However, several pieces escaped this fate, their total number is unknown, but one of them, the Double Eagle, with a face value of only $20, came to the attention of numismatists in 2002. Then it was put up for auction at Sotheby's, and the sale of the rarity showed a record result - $7.5 million . The design of the coin is distinguished by exceptional clarity and high quality workmanship.
The obverse features an image of Liberty in an antique tunic fluttering in the wind. In her right hand she holds a burning torch, in her left - an olive branch, a symbol of peace and prosperity. At the girl’s feet are 13 stars representing the states of America. The reverse depicts an eagle with an olive branch and a bunch of arrows in its claws.
Despite the fact that the specimen was not originally an exclusively collectible item and was in circulation, its condition is close to perfect. One can only guess whether surviving copies of this coin still exist, but it is obvious that their price will be no less high.
This concludes the list of gold coins with the highest value, but if we analyze this segment of the market, it becomes clear that the opportunity to invest in this direction has impressive prospects.
Source: https://zoloto-md.ru/info/articlessamyie-dorogie-zolotyie-monetyi-mir
The most expensive gold of Tsarist Russia: valuable samples and coins
Probably everyone knows that the most expensive gold is those pieces of jewelry that were made in Tsarist Russia. The high cost of jewelry is due to the fact that at that time only the highest quality material was used, without any impurities or additives. When trying to sell such products, deception quite often occurs, since their exact value is unknown: everyone wants to buy it cheaper, and then sell it at a higher price.
Samples on jewelry from Tsarist Russia
Jewelry from Tsarist Russia has slightly different hallmarks, which is quite often misleading. In those days, a mark was used, which was measured in spools. Zolotnik is an old Russian measure of weight, which is equal to approximately 4.3 g. This mark was used from 1711 to 1927, and after that they began to gradually switch to the metric system, which is more familiar to us.
In Tsarist Russia the following samples were installed:
We recommend reading: Features of investing in gold and silver 2015
A separate scale was established for silver products, which was also calculated by spools.
Spool tests indicate the quantitative content of precious metal in 96 units. That is, if the product has a hallmark of 56, this means that there is 56% pure precious metal, and the remaining 40% are impurities, or, as they are also called, alloys. To recalculate a spool test into a modern one, it is customary to use a special formula: X/96*1000=Y (X is a spool test, Y is a metric test.
For convenience, all sample data are given in the table:
Metric standard | Carat hallmark | Spool test |
1000 | 24 | 96 |
980 | 23,5 | 94 |
958 | 23 | 92 |
916 | 22 | 88 |
900 | 21,6 | 86,4 |
750 | 18 | 72 |
585 | 14 | 56 |
500 | 12 | 48 |
375 | 9 | 36 |
333 | 8 | 32 |
You can recognize the products of Tsarist Russia not only by the sample, but also by the mark. They were of different sizes: small ones were used for miniature decorations, and large ones were used for large ones. Many may be confused by the fact that there are raised and depressed marks, but both are correct. Only the latter began to be used in 1897.
We recommend reading: Precious metals prices: dynamics, quotes, October results
The most important question is the current price of the product. It is impossible to give a specific answer here, since rare jewelry can be valued differently. The main rule is not to take items to pawn shops; it is better to look for an appraiser who will evaluate the jewelry by calculating the approximate year of its manufacture (the older the item, the higher the cost).
Expensive gold coins
It is impossible not to mention the valuable gold coins of Tsarist Russia, because at that time they were all made from high-quality materials with a minimum of additives.
The following items are considered some of the most expensive:
- 20 rubles of 1755 with the image of Empress Elizabeth. This coin is made of gold. Only two surviving copies are known to exist: one is kept in the Hermitage, and the other was purchased for £1,782,500 at auction, and the coin is now in a private collection.
- 5 rubles 1907. The last time the coin appeared at auction was in 2011, where it was bought for 4,350,000 rubles.
- 25 rubles 1908. The real value of this gold coin is questionable, since no one has seen it in good quality, and in poor condition it was bought for 1,900,000 rubles. According to appraisers, the price of a perfect example is twice this figure.
We recommend reading: Prices for precious metals today: November 10, 2014
The gold of Tsarist Russia is a tasty morsel for antique shops and pawnshops, so before selling such items you should definitely contact independent experts who will appreciate the item.
Source: http://inzoloto.ru/precious-metalls/samoe-dorogoe-zoloto-tsarskoy-rossii
10 most expensive metals in the world
Our planet is rich in various types of minerals. The most valuable and practical of them are, of course, metals. Each of them is unique in its structure, composition and appearance. Specialists will separate all metals into natural and artificially derived ones. Paradoxically, artificial materials are many times more expensive than natural ones. This is explained, first of all, by the complexity of the technological process of their manufacture.
Today we propose to find out the top 10 most expensive metals in the world , the price per gram is given in US dollars as of 2018.
10. Scandium – $3-4
Scandium, being one of the most high-strength metals on Earth, has found wide application in various industrial fields: it is used in robotics, the construction of innovative technology (for example, laser), space and aircraft.
It has not bypassed the sports sphere either - the highest quality and most expensive equipment for golf, hockey and cycling is made exclusively from scandium. Speaking of the name: this metal was first discovered in the 19th century by Swedish chemist Lars Nilsson, who named his discovery after Scandinavia.
The cost of one gram of such metal is about 3-4 US dollars.
9. Rhenium – $5
This silvery-white metal is rightfully considered the rarest and most sought-after element in the world. Its peculiarity lies in one of the highest melting temperatures and a high degree of density. The main consumers of this metal are the nuclear, chemical and electronics industries. The price of rhenium is very unstable and ranges from 2.5 to 5 conventional units per gram.
8. Osmium – $12-15
Osmium got its name for a reason. Translated from Greek, "Osme" means "smell." The question arises - what is the connection? The fact is that this metal really has a very specific and pungent odor, reminiscent of a mixture of chlorine and garlic.
As for the physical properties of osmium, everything here is also very interesting: despite its high strength, it is very fragile. This element is used mainly in the chemical industry and pharmacology. The cost of a gram of this “miracle metal” is 12-15 dollars.
7. Iridium – $16-18
Corrosion resistance is the “calling card” of this metal. Possessing high strength, high melting point and durability, iridium is widely used in the creation of jewelry, expensive fountain pens, souvenirs and much more.
Iridium jewelry, by the way, practically does not wear out and shines flawlessly. The metal is also in demand in the manufacture of surgical instruments. It is worth noting that it is rarely used by itself: alloys are most often made from it.
16-18 dollars per gram is the approximate price of iridium.
6. Palladium – $25-30
Palladium belongs to the group of platinum metals. Its main characteristics include flexibility, softness, low melting point, resistance to corrosion and tarnishing. The main use of this silvery-white metal is the jewelry industry. Craftsmen value palladium for its flexibility and lightness, which allows them to create the most amazing works of jewelry from it. The cost of palladium is 25-30 USD. per gram.
5. Rhodium – $30-45
Rhodium is a hard, noble metal with powerful reflective properties and resistance to oxidation and corrosion. I also consider it one of the rarest elements - only 30 tons of this material are mined throughout the world every year.
In the automotive industry it is used for the manufacture of mirrors and headlights, in the jewelry industry it is used for final processing of the product. The largest deposits are located in Russia, Canada and South Africa.
The cost of valuable platinum metal ranges from 30 to 45 dollars per gram.
4. Gold – $35-45
Without any doubt, gold is the most popular precious metal in the world. It gained its fame and demand due to its strength, uniformity and malleability. It is important to know that gold is one of the few metals found exclusively in its pure form. Its areas of application are jewelry, dentistry, and the electronics industry. The USA, China and Australia are the leaders in gold mining. The cost of a gram of gold on the world market is 35-45 conventional units.
3. Platinum – $40-50
The top three is opened by the noble white-silver metal – platinum. In nature, it is found only as a natural alloy with other metals: noble and base.
The artificial removal of platinum is a very labor-intensive, resource-intensive and long process, which determines its price. This metal is distinguished by its special shine and ductility, which is why it is actively used in the jewelry, weapons, and medical industries.
40-50 dollars is the price per gram of platinum. Many people mistakenly consider platinum to be the most expensive metal.
2. Osmium-187 – $10,000
Osmium-187 is a rare artificially produced black powder with a purple tint, belonging to complex isotopes. It is considered the strongest metal on Earth, despite the fact that it can be crushed into small particles with an ordinary mortar.
Osmium-187 is of great importance in the chemical industry: it is used as a catalyst for various types of chemical reactions. Kazakhstan is the first and only country supplying this metal to the world market.
In the Guinness Book of Records its value is estimated at 200 thousand US dollars, while on the market it is 10 thousand. per gram.
1. The most expensive metal in the world is California-252 – $10,000,000
There is no metal on earth today that would be more expensive; this record is recorded in the Guinness Book. It is one of the isotopes of californium.
Its fabulous price, which amounts to 10 million US dollars per gram, is fully justified: the total world reserve of this amazing element is 8 grams, and annual production is 30-40 micrograms. It is obtained through complex and long-term work in laboratory conditions.
But the main value of California-252 is its incredible energy, comparable to the energy of an average nuclear reactor. The use of this unique metal extended to the fields of medicine and nuclear physics.
Source: https://basetop.ru/reyting-samyih-dorogih-metallov/
List and characteristics of the most expensive metals and isotopes
The most expensive precious metal is gold or platinum? Or are there other metals in nature whose value exceeds the value of gold and platinum? Gold and platinum are not the most expensive metals in the world. There are a number of other elements whose price significantly exceeds the cost of platinum and gold.
articles
- The most expensive metals
- Rhodium
- Isotopes
The most expensive metals
The list should start by dividing it into two parts. Metals that are found in nature have a lower cost, and metals presented in the form of isotopes have a different, higher cost.
Platinum bar
So, let's start with those that exist in nature.
- Platinum.
- Gold.
- Ruthenium.
Everyone knows platinum. This metal is used to make jewelry and added to the alloy for minting coins. Platinum has similarities to silver and for this reason it was favored by medieval counterfeiters. They made coins from this metal because it has a higher weight.
Platinum is found in nuggets; there are deposits in the Urals. But within a few years since its opening, it was almost 80% depleted. In the 19th century, platinum was recognized as an independent metal, although it is not found in nature in its pure form. The composition of nuggets can include both copper and iron, as well as rhodium and ruthenium. Platinum is isolated by bathing in “aqua regia,” which is what chemists call a solution of nitric and hydrochloric acid. The largest deposits of platinum are located in the BAR.
There is another metal in the world that is well known to everyone from jewelry and coins - gold. A very ductile and malleable metal that has been popular for many centuries. Gold is a sign of wealth and position in society; today the wealth of a country is determined by the presence of oil and gold deposits in it.
In terms of its chemical and other properties, gold is inferior to many metals, but it is indispensable in electronics and other industries. Acts as a conductor.
Expensive metals are invariably associated with gold, its shine and chic. Yellow is the color of the sun and kings. Therefore, gold is invariably popular and is steadily rising in price.
Gold bar
Ruthenium and rhodium are somewhat similar. Ruthenium is also found in platinum nuggets. It was discovered by a scientist from Russia, who in 1844 became interested in studying rhodium and completely accidentally discovered a new metal. Ruthenium is considered rare and expensive, but it is not as marketable as platinum and gold. The cost per gram is about $20.
Isotopes
Valuable isotopes:
- iridium;
- osmium;
- californium.
1) In 1803, an isotope called iridium was discovered; it was distinguished by its silvery color and had an external resemblance to aluminum and silver. Iridium costs about $20 per gram. Today, due to its weight, strength and other qualities, iridium is used in electronics, for the manufacture of weight measures and other purposes. In dental practice and medicine - as catalysts and for the manufacture of lasers. Iridium is the heaviest metal; no more than a ton is consumed per year.
2) Osmium-187 - the isotope got its name due to its smell. Translated from Greek, osmium means smell. The reason is that this isotope has an uncharacteristic odor that resembles the smell of garlic and chlorine. A gram of osmium costs from 10 thousand US dollars. It is the most sought after metal on the market. Kazakhstan is engaged in its production, and you need to wait for osmium, like a child, exactly 9 months.
It is a black powder with a purple tint, radioactive, and fragile. Due to its fragility, osmium is used in the pharmaceutical industry; in America, medicine is made from it. Osmium is found in minerals, but not in pure form, but in combination with iridium. It is very difficult to detect osmium in the earth's crust, there is little of it and it is scattered, so the metal is considered expensive and rare.
3) There is another isotope in the world, the cost of which is amazing - this is californium 252, per gram of which you can get 6.5 million dollars. The metal got its name due to the fact that it was discovered by a group of scientists at the California Institute. Only two reactors on our planet are capable of producing californium 252, one is in the USA, the other is in Russia.
There are only a few grams of this metal in the world, and reactors produce several micrograms per year.
Californian has other isotopes, but 252 is considered the most expensive and valuable. It is used in various industries; due to its high radioactivity, californium can replace a nuclear reactor. It is used in medicine to treat oncology. And also, with the help of californium, it is possible to find even minor damage in the neutron chamber. The isotope is used in the manufacture of aircraft and in reactors.
Isotopes are not classified as precious metals, but their value is much higher than nuggets and bars.
Source: https://DedPodaril.com/interesno/samyy-dorogoy-dragocennyy-metall.html