What is 18 karat gold

What is 18 karat gold?

Among the modern varieties of alloys, colors, ligatures, it is easy for an inexperienced person in jewelry to get lost. You can already get confused in the systems that determine how valuable a particular alloy is. The most popular and generally accepted sample evaluation systems at the state level are metric and carat. There is also a spool valve, but it is already outdated.

Nowadays, it is customary to use exclusively the British carat system or the metric one, legalized in Russia and the CIS countries after 1927. For example: 18 karat gold according to the metric system will be 750 fineness, which will correspond to 750 g of pure gold and 250 g of alloy metals in 1 kg.

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Samples and processability

As you know, pure gold is not a suitable material for jewelry or making bank coins and bars, since it is too soft and highly susceptible to mechanical damage and abrasion.

True, 999.9 standard has recently become fashionable; it contains practically no alloys that give the products strength and ductility. It is also called 1000. Also in our time, jewelry in which natural nuggets are used instead of precious stones or inlays is considered a trendy decoration.

But the most popular for jewelry work is still considered to be 18 carat gold (750 standard) and 14 carat gold (585 standard).

Such ligature alloys are most convenient for jewelers to work with and are resistant to wear and mechanical damage to which they are exposed during wearing.

Investing in 18 and 14 carat gold in jewelry is a profitable decision: the more famous the master jeweler, the more exclusive the jewelry, the higher its value will be in the future.

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Variety of metal palettes

So, what does 18 carat mean is now clear, but what kind of gold is it? And it comes in a variety of different, sometimes simply incredible, shades. Let's start with traditional colors: there is yellow gold, red, pink, white. Master jewelers add newer and more interesting shades to their products by adding various metals to the ligatures: silver, copper, aluminum, iron, lead, zinc, cadmium, nickel, etc.

Precious metal can be of different colors, it all depends on the alloy

As a result, the buyer can see on the shelves of shops and jewelry stores products made from blue, light blue, violet, lilac, olive and green, brown and deep black.

Some of the types, regardless of the standard of the metal (above or below 18k), are used exclusively for decorating products as exotic inserts. For example, this applies to violet (amethyst) gold.

Due to the nature of the chemical compounds, despite the 18k gold, the alloy is very fragile.

This type of metal, rose gold, is becoming increasingly popular among both jewelers and consumers. The unusual and delicate shade harmonizes perfectly with various precious and semi-precious stones, inlays from other metals. It is made using yellow gold (75.5%) and metals such as nickel, palladium, copper, platinum, and silver.

Depending on the percentage of one or another component, gold acquires a more or less saturated shade of pink or red/red.

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Roots of the origin of precious pink metal

Previously, when it was not possible to conduct a reliable chemical analysis of coins or items, the most accurate sign of real gold was the red color. When pure gold is heated, an oxidation process occurs, as a result of which the purest yellow metal takes on a noble red color.

Unscrupulous jewelers have always taken advantage of this feature, adding small amounts of copper and silver to the precious metal. This made it possible to save a small amount of expensive gold by passing off a lower quality metal as red gold. Of course, it looked a little different and duller, but the differences were insignificant. Only people experienced in jewelry could distinguish a fake at a glance.

Nowadays, such gold is sold under the purity of 585, it is much cheaper than products of the 750 purity. For many, rose gold is associated with jewelry from the times of the USSR, as well as a means of investment for the middle class, which does not have the money for higher quality and more expensive metal.

In fact, this is a misconception, and quite an outdated one. Rose gold is now not only a popular metal for making exquisite, fashionable and original jewelry, but also quite expensive. Especially if the product has a 750 standard.

Source: https://grammzolota.ru/proby/18-karatnoe.html

Formula for calculating the purity of 18 karat gold

Gold is a popular precious metal. And every year its value grows. Gold is traded on commodity markets by large entrepreneurs, and investors, in turn, purchase it. But since these markets are most often international, confusion may arise regarding the conversion of gold samples into carats and vice versa.

In European countries, it was customary to take the carat as a unit of measurement for the weight of gold in the alloy. This is the British number system. It did not correspond to the one that existed in the countries of the Soviet Union and still exists in the CIS. The weight of the precious metal is an important indicator, since it directly affects the cost. Therefore, in order to correctly compare and measure the weight of gold, two systems are used:

Counting systems

The basis of the metric system is the sample. This is what is indicated when selling jewelry in the CIS countries. Fineness is an indicator of the amount of gold as a percentage in jewelry. After all, jewelry has never been made from pure gold.

This is a soft precious metal, and in order for it to hold its shape, you need to add some kind of impurity to it. Such additions to gold are called alloys. Copper, nickel, and silver are used as such. Thanks to the ligature, the shades of jewelry are obtained.

Samples are state standards, and according to the rules they clearly correspond to reality. For example, 750 standard, which corresponds to 18 carats, has 75% pure gold in the alloy. The product must be marked with a state stamp in the form of an imprint on the reverse side, which guarantees authenticity and compliance with standards.

Although even 18-karat gold, or 750 gold, differs in the method of making the alloy in our country and in European countries. There, more silver or nickel is added to the ligature, which gives the jewelry a silvery tint. But in the post-Soviet space they use a cheaper metal - copper, and the product becomes reddish in color. But it will also be more durable.

Carat is also a unit of measurement for the purity of an alloy. It is used in the USA and most European countries. Jewelry from there also has a mark, only in carat units. This indicator is used for all types of precious metals and stones as well. For clarity: 999 standard - pure gold corresponds to 24 carats.

Another example: 22 carat gold contains 22 parts pure gold and 2 parts alloy. In practice, 18 carat and 14 carat gold are used. And UK residents prefer 9 carat gold. In China, India and other eastern countries they love 22 carat gold.

Conversion formula

There is a formula that allows you to easily convert one unit of measurement to another. It is suitable for all cases - 24: 1000 = A: B, where A is carat and B is metric. From here you can derive the desired values.

For example, to convert 18 carats into a sample, you need to do this: B = A * 1000: 24. It follows from this that B = 750, which corresponds to 75% pure gold in the alloy. These indicators are classified as a high-grade group.

High-grade gold is easier to store, it does not deteriorate over the years and does not change color. But making products from it heavier makes it especially difficult to shape them. Low-grade gold is found in decorative items, watches, and household products.

The main thing is not to confuse low-grade gold with gilding. Therefore, pay attention to the certificates confirming the sample. Items of 18 carats are especially often counterfeited, since they can be sold at a high price, and an inexperienced buyer will not notice the difference.

Statistics show that more than half of the gold imported into the Russian Federation from Europe does not meet internal quality standards. Therefore, inquire about the origin and authenticity of the jewelry.

In order not to count and translate systems manually, use this table of the most popular translations:

18 carat = 750 purity = 75% pure gold in the alloy.

14 carat = 585 purity = 58.5% pure gold in the alloy.

12 carat = 500 purity = 50% gold in the alloy.

9 carats = 375 standard = 37.5% gold content in the alloy.

8 carats = 333 hallmark = 33.3% gold in the alloy.

Gold of 9 and 8 carats is considered low grade. Therefore, if prestige and beautiful appearance are important to you, pay attention to the sample or carat of jewelry.

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Source: https://DedPodaril.com/zoloto/klejma/18-karat-zolota-kakaya-proba.html

18 carat gold - what standard corresponds to what kind of marking it is and how much does 1 gram cost?

Good day! Those who bought jewelry abroad often do not understand what 18 carat gold means: what grade is it and how much precious metal is contained in such an alloy? People from the territory of the former USSR are little familiar with the carat testing system - we have been using the metric system for a long time. The situation is aggravated by the existence of the “diamond carat,” which measures the weight of precious stones. But gold items purchased abroad are often marked with karat marks.

What is carat

The karat system involves designating the percentage of gold in the alloy with numbers from 9 to 24, where 24 is the highest standard, that is, 100%. Physically, the absolute purity of the metal is unattainable and impurities are present in trace amounts, therefore the “thousandth” sample is designated by the number 999 - 99.9%.

I’ll answer the main question right away: in Russia, jewelry with a hallmark of 18K is indicated by the 750 mark. They contain 75% pure gold.

Origin of the word

The breadfruit tree of John, known to people since biblical times, grows in the Mediterranean - Ceratonia capita. Its fruits are consumed as a delicacy, added to immunostimulating complexes, and compote is made from them. But ceratonia also has a non-standard property for plants: it produces seeds, the mass of which is constant and equal to ~0.19 g. Our ancient ancestors noticed this and began to use a measure of weight that refers to the seed of ceratonia (Greek cerátiοn), the carat.

The modern carat (measure of weight) has not changed since then and is 0.2 g.

How to determine carat content

You won’t be able to measure the gold content in jewelry if the sample has worn off and is hard to see at home. The maximum that will be possible is to distinguish a gold alloy from an obvious fake. But if the ring has another standard - metric or spool (it is found on jewelry and luxury items produced before the revolution or immediately after), then you can convert its value into the carat system.

How to convert to the metric system and sample correspondence table

There are two ways to convert carats to thousandths of mass.

1. Calculate. A complex, but universal method that works with unpopular samples. We take 24 carats as 100% and get a carat equal to 4.17% of the total mass. If a product is marked 18K, then in the metric system it is 4.17 x 18 = 75%, that is, 750 fine.
2. Use the correspondence table. I'm including a spool test in case you come across an antique tiara.

Metric system	999	958	900	750	585	500	375
Carat system	24	23	22	18	14	12	9
Spool system	96	92	88	72	56	48	36
gold	99,9 %	95,8 %	90 %	75 %	58,5 %	50 %	37,5 %

Legislative regulation

In Russia, all precious metal products with a purity of at least 300 are subject to hallmarking and hallmarking (actually 375, because we do not produce lower-grade gold). The metric value of the sample is applied to the jewelry; it is up to the buyer to convert it into carats.

A little about this test

750 standard is popular among jewelers and their clients. This is the most successful combination of the purity of a noble metal and ease of use: 999 standard is too soft to be worn constantly. However, a gold content of 75% is sufficient for the product to retain the inherent luster of pure gold.

Composition and properties

As can be understood from the name of the sample, 25% of the mass of our pendant or chain is made up of ligature (foreign metals). Impurities are added to gold primarily because the pure precious metal is extremely sensitive to damage. The 999.9 fine bank bullion can be scratched with a fingernail. This is unacceptable for jewelry that we wear on our bodies, so a ligature is added to gold to increase its wear resistance.

750 gold is common and contains the following additives in different proportions:

• copper (the main alloying component of most alloys);
• silver (also present almost everywhere);
• palladium (added to white gold);
• platinum (rare);
• nickel (rare).

Strength

The price to pay for the prestige of a high-grade alloy and its characteristic shine is the need to wear it carefully. 18K jewelry is easier to break than low-grade analogues.

Alloy shade chart

To understand what shade the alloy will give to gold, you need to look at the original color of the alloying metal. Often there are several additives. Let's look at the popular options for metal “cocktails”:

Try	Color	Gold	Silver	Copper	Palladium
18 carat	red	75 %	40 %	21 %	No
18 carat	pink	75 %	12,5 %	12,5 %	No
18 carat	yellow	75 %	17 %	8 %	No
18 carat	greenish	75 %	25 %	No	No
18 carat	white	75 %	5 %	No	20 %

Brand

In addition to the hallmark, each piece of jewelry must have an imprint of the name of the manufacturer. The name plate is registered by a branch of the Assay Chamber under the Ministry of Finance of the Russian Federation and contains encrypted information about the year of manufacture of the jewelry and the factory.

The 18-carat ring produced by the Russian factory will be marked 750.

How much does 1 gram of gold of this standard cost?

18 karat gold is one of the most valuable on the market. You can follow the fluctuations in its exchange rate using the chart:

Price for 999 standard according to the Central BankMarket value of the standard todayPrice for scrapPrice in jewelry

Difference between 14 and 18 carats

18K is considered an elite grade. 14K (585 standard) is worn mainly as an everyday option, saving the expensive 750 standard for special occasions.

Cleanliness, hardness and durability

The more alloys in the alloy, the more pronounced the properties of the alloying components. 585 sample, consisting of almost half of impurities, is much lighter, harder and stronger than 750 sample, and is less susceptible to minor damage such as scratches or dents.

Color

The color of pure gold is bright yellow. An alloy containing a lot of copper takes on a reddish tint (pure copper has a rich brick-pink color). Green gold is coming into fashion, which contains no copper at all, but a lot of silver.

Many jewelers use the rhodium plating technique in their work - coating products with a thin (1.5–25 microns) layer of rhodium (a rare platinum group metal, many times harder than gold). Rhodium-plated jewelry can be not only the classic yellow, pink and white colors, but also black.

Markings

¾ gold products are marked with the mark “18K” (units of measurement are indicated after the numbers). In Europe, such a ring will most likely have two marks at once: carat and metric (750).

Price

In Arab countries, you can find jewelry positioned by sellers as almost pure gold, but the reliability of these assurances is questionable.

Therefore, 750 is the highest of jewelry standards, given that 958 turned out to be unsuccessful in terms of price and quality. It is also the most expensive: in Russian stores such jewelry costs on average 1.13 times more than standard 14-karat jewelry. If you go to pawn shops and try to sell such metal as scrap, it will be valued at 1.25 times higher than 14-karat.

What to consider when purchasing products

In order for the jewelry to please you for a long time, do not make emotional purchases. Consider where you plan to wear your new item. 18-karat gold is suitable for festive outfits and for everyday wear, if it is gentle.

How to distinguish gold from gilding

1. Pay attention to the brand. There are no hallmarks that indicate gold plating, and a silver ring that is plated with gold will be marked as sterling silver (875 or 925 fineness).
2. Try scratching the item with a thin needle. If there is base metal underneath the gold plating, the scratch will be darker than the surface.
3. Stores sometimes have assay needle sets available - you can ask the seller to make sure that the gold is real, or contact a pawnshop with this request.
4. You can understand that the jewelry is fake without checking it. If you have worn it for several days or weeks and it has darkened, it is definitely not gold.

Below watch a visual video on how to distinguish a fake:

Why high purity is not always good

A high standard imposes restrictions on the wearer. It is better to go for things with a carat content below 18 if you:

• you buy jewelry that you want to always wear (for example, to decorate your neck on a mountain hike);
• you are choosing a gift for a child who, due to his age, will not be able to handle it carefully.

Why are low carats bad?

Low-grade gold is inferior in beauty to high-grade gold. It shines duller and looks cheaper. This is not so noticeable when you are wearing one piece of jewelry, but a set of several pieces of different grades will look uneven and give off a low-carat element.

Nickel allergy

Sometimes (infrequently) nickel is present in multicomponent jewelry alloys. Gold items (especially high-ligature ones) can become an allergen if they contain nickel.

The only way out of the situation is not to wear alloys containing nickel. Humanity has not yet learned to cure allergies. Medicine either uses drugs to suppress symptoms or recommends avoiding the allergen. If your body recognizes nickel as a danger, you should take a closer look at jewelry without it.

Care Tips

To make the item last a long time, use simple recommendations:

• take it off before going to bed, taking a bath or going to the gym;
• do not use abrasive compounds when cleaning;
• store in a box with soft upholstery on the inside and wipe before putting it in;
• Give the product for repair only to reputable workshops and trusted craftsmen.

Conclusion

Gold loves to be treated with respect. If you love and care for it, it will reciprocate and perhaps become a family heirloom.

Have a golden mood! Subscribe to my articles and share useful information with friends.

Source: https://zhazhdazolota.ru/proby/18-karat

Difference between 14k and 18k gold

14 and 18 karat gold jewelry offers a good balance between durability and purity. Let's take a look at what these gold alloys are made of and how you should choose between them and higher or lower purity jewelry.

14 and 18 karat gold alloy is made by mixing pure gold with copper, nickel, zinc, etc. Additional metals are added to make the alloy heavier and stronger than pure gold (24K), which is too soft for jewelry.

Difference between 14 and 18 karat gold

14k and 18k gold are similar only in that they are both alloys. Despite the fact that their main component is gold, they are distinguished by their purity.

Due to different purities, 14 and 18 karat jewelry also differ in price, hardness, color and allergenicity.

To understand how they differ, you must know what the carat number means. Karat is a unit of measurement of gold purity, indicating the amount of gold in an alloy.

If the gold alloy is 1 karat, that means it contains 1/24 pure gold, or approximately 4.17%.

Difference in purity

Now that you know the carat value, you can see how 14 and 18 carats differ in terms of purity.

14K gold is 58.3% pure gold (14/24), while 18K gold is 75% pure gold (18/24).

Obviously, compared to 14k gold, 18k gold is purer because it contains more precious metal.

Price

The difference in purity between 14 and 18 karat gold results in a difference in price. Because 18K gold contains more pure gold, jewelry made from it tends to be more expensive.

If you are looking for a more affordable product, 14K gold will be cheaper than 18K gold.

Hardness and durability

Gold is a soft metal, which is the main reason for mixing it with other metals to create jewelry. Generally, the lower the purity of the gold, the heavier the alloy.

Compared to higher karat gold jewelry, 14 karat jewelry contains more non-gold metals as a percentage of its total weight. As a result, these jewelry are harder and more durable.

18, 20 and 22 karat alloys, on the other hand, contain more gold and are therefore purer and softer. This is why such jewelry tends to scratch, wear out, bend and break faster.

For example, a 10 or 14 karat gold ring will wear out more slowly than an 18 karat gold ring, which will scratch and bend more easily. This difference must be taken into account when purchasing a product.

If you are looking for a piece of jewelry that will last, 14K gold is better in this regard.

Also, 14-karat alloy is recommended for use in jewelry for daily wear.

You can extend the life of 18-karat gold jewelry by not wearing it every day.

Buying 14K Gold: When Is It a Good Choice?

14 carat jewelry is quite affordable compared to 18 or 22 carat jewelry, which is what makes it so popular among buyers. They are also relatively stronger than cleaner, more expensive products.

If money is no object and you don't intend to wear your gold jewelry every day, you can safely buy jewelry that has high purity.

However, if you are looking for something more affordable and are concerned about durability, consider 14K jewelry.

Choose this type of jewelry if you plan to wear it frequently, especially if it is a ring or bracelet, an item that has a higher risk of damage when worn.

Also, if you have a nickel allergy and the jewelry you buy does not contain nickel, don't go below 14K (if you're really sensitive, you may have to buy an even higher purity).

When should you buy 18-karat gold?

18K is a good choice if you want jewelry that is fairly clean but not too soft. This alloy, along with 14K gold, is a good compromise between durability and purity.

Of course, 14k gold is harder and more durable.

However, if you are very sensitive to nickel, such items may cause a rash, whereas 18k gold is much less likely to cause an allergic reaction.

It's not a good idea to choose 18K gold for jewelry that you'll wear every day, especially rings and bracelets, which are more likely to get knocked or scratched.

In such cases, 14 or 10 karat gold may be a better option as it is more difficult to bend, break or scratch.

Choose 18K gold for jewelry that you won't wear every day or for jewelry such as necklaces and earrings that are less susceptible to accidental bumps and knocks.

Source: http://DragMag.ru/raznica-mezhdu-14-karatnym-i-18-karatnym-zolotom/

18 karat gold - what is the hallmark of jewelry?

The metric hallmark of gold is a digital designation (stamp) showing its pure content in a piece of jewelry. Its definition and branding is carried out by special control institutions. There is, however, also such a concept as carat. What does it mean? For example, 18 carat gold - what standard will be determined for such jewelry? Let's try to understand this issue.

18 karat gold – what is the standard of jewelry?

So, more details. Many countries measure the gold content of precious alloys in karats. And this system has been used for quite a long time. Pure gold, according to it, is equal to 24 carats. What about other options? For example, you are interested in 18 carat gold - what grade is this jewelry? Everything is very simple. This is 750 metric proof. Such products contain 75% pure gold.

In general, the number of samples existing in the world amounts to dozens. But the main two systems are metric and carat. On the territory of the Russian Federation, 999, 958, 750, 585, 500 and 375 samples were accepted. There is also sample 583. She was very popular in the USSR.

Gold quality

Next point. When wondering about 18 carat gold products, what standard they correspond to, do not forget about their quality. That is, pure precious metal is, of course, good. However, it is even more expensive and less durable. Alloying with other metals is often used in jewelry. The color and durability of such products have much more fans than the quality of products made from pure gold. 18 carats is, as mentioned above, 75% precious metal (750 standard).

Selection rate

In general, as far as demand is concerned, the situation is ambiguous. In Europe, 18-karat gold products have been considered the norm for quite some time. What sample is not at all important for the consumer. Buyers are quite satisfied with the rich yellow color and attractive appearance.

Women often do not part with such jewelry even on the beach. In a word, they are worn like a second skin. The popularity is well justified. Although, no less common, for example, in the USA is 585 standard (14 carats). By the way, it is in the USA that the sale of jewelry with a carat value of less than 10 is prohibited.

In many other countries, consumers are offered gold jewelry of 8 and 9 carats.

be careful

When making a purchase, do not forget to be vigilant. Do you want to purchase 18 carat gold jewelry? What kind of test this is - you already know. Look for the "18k" or "750" markings on the back of the product. Always look at the carat value.

As a rule, if it is indicated on the jewelry, there should also be a manufacturer’s mark. This guarantees the authenticity of the marking. The designation of the country of origin is also required. Testing is not enough.

A stamp with the creator's distinctive trademark assures the buyer that they are purchasing real jewelry.

Caring for your jewelry

And finally. Gold is a very reliable, strong and durable metal. Anyone who knows 18 carat (what standard it is) most often chooses this option when purchasing jewelry. However, we must not forget about proper care for them. Products must be kept safe and clean.

You should not wear jewelry during rough work or in contact with aggressive chemicals. To protect them from scratches, store each product in a separate box. From time to time, check the fastening of the stones, the strength of the links and fasteners. If you notice the slightest damage, immediately seek help from a jeweler.

In principle, 750 gold is exactly what you need. Especially if you want to settle on a beautiful, reliable and fairly affordable product.

Source: https://FB.ru/article/270075/karat-zolota---kakaya-proba-yuvelirnyih-izdeliy/amp

Gold 24, 18, 14 and 10 carats: what is it and what is the purity?

Many people are familiar with the jewelry measure for determining weight. However, in the CIS, few people know what a carat is. One unit of diamond weight is considered to be the weight of 1 grain of carob acacia. Converted to grams, such a grain is equal to a weight of 200 milligrams and this mass is considered to be 1 carat.

For convenience, the karat system for gold samples, and not just precious stones, is adopted in some Western countries.

https://www.youtube.com/watch?v=u8ppCrJY2tc

The gold carat does not reflect weight, but shows the quantitative ratio of the precious metal and the alloy (additive material) in the product. But if our alloy is characterized by the use of copper as an admixture, then in the West they mainly work with silver. Hence the difference in the color of jewelry.

Jewelry carat

The carat and metric systems are accepted as the main ones in the world classification of gold. The metric system is in force in Russia, Italy, Germany, Austria, and the CIS countries. Carat - in the USA, Great Britain, Switzerland, and other countries. For marking, jewelers use small stamps that are applied to the inner surface of the product. It is used to determine the country that produced the jewelry and the quality of the jewelry alloy.

Only jewelry with the state mark can be purchased as jewelry. Any goods that do not have a stamp should raise doubts about their authenticity, so you should not waste money on such purchases.

Gold is considered to be 24 carats as the maximum unit of measurement. This indicator corresponds to the highest standard - 999. In fact, it is pure precious metal, without foreign impurities. To determine the purity of a metal, it is heated. Pure gold acquires a reddish tint when heated. In the old days such metal was called red metal.

The name red was an indicator of the highest quality, since in the presence of even a small amount of impurities, the red effect was lost when heated.

Compliance with carat, metric systems and gold quality:

CaratsSamplesQuality

24	999	Jewelers consider 24 and 18 carat precious metals to be of the highest quality.
18	750
14	585	Indicator 14, or 10 carat gold – average level of quality.
10	417
9	375	9 – 8 carats – low quality.
8	333

The ratio of base metal to alloy determines the value of the jewelry. The most expensive is 24-karat, pure gold of the highest standard, without ligature. In some countries there are things made of precious metal with a value of 23 carats.

The presence of silver, platinum, and palladium in the alloy gives the alloy a white color. Experts call this compound white gold. These metals belong to the noble group, therefore the cost of such an alloy is higher. Copper and nickel are considered inexpensive metals. The presence of these components reduces the cost of the product.

To be fair, it should be noted that copper not only gives a beautiful pinkish tint, but also increases the wear resistance of the metal. This is the indicator that has always favorably distinguished first Soviet and now Russian jewelry.

Alloy proportions

Different countries have their own habits and traditions that are typical for the jewelry market. In eastern countries, jewelry made of 24 and 23 carat metal has gained the greatest popularity. It is either pure or almost pure gold.

The cost of jewelry corresponds to the quality of the alloy. Such products are passed down from generation to generation. They look similar to the inexpensive yellow jewelry that we are used to seeing in our markets. Only a true connoisseur will distinguish a quality product from a cheap fake. Fine gold is a soft metal that is susceptible to physical deterioration.

In Western countries, jewelry made from pure precious metal is difficult to find. As a rule, it is used in the manufacture of demonstration items that are made for commemorative purposes.

To increase durability, filler metals are added to gold:

1. 18 carat gold (our 750 standard) consists of 75% base metal and 25% alloy. This is also an expensive compound in the jewelry industry. In Switzerland, it is legally prohibited to sell jewelry with a carat content below 18. This is worth knowing for lovers of foreign jewelry, who often end up in Russia without going through customs. Products of the highest quality are yellow in color.

2. 14 carat gold is the most optimal when taking into account the price-quality ratio. This is the most common category of jewelry. The use of such a proportion in the alloy is especially typical for Russia, Germany, Ukraine, and Belarus.

   Soviet 583 standard can be found on products made in the USSR, modern foreign 14 carat is 585 Russian standard. The ratio in this jewelry alloy is 58.5% base metal and 41.5% auxiliary.

   If foreign jewelry is characterized by a bright yellow color, which is explained by the presence of silver, then for products made in the CIS countries, a pinkish tint will be distinctive. This tone is given by the presence of copper. And this is a traditional connection that has remained since the times of the USSR.

3. In the UK, 9 carat gold is the most popular. The proportion looks like this - 37.5% is precious, and 62.5% is filler metal. Therefore, such a compound is considered a low-quality alloy.

Foreign companies, taking into account the demand for jewelry, make a stamp taking into account both the carat of gold and the purity.

This is convenient for all categories of consumers, since there is no need to independently convert one unit of measurement to another. In some cases, the letter “K” is written next to the number. The designation of a hallmark with 585 hallmark may look like 14K.

Jewelry has always been a profitable investment. Not to mention their aesthetic qualities. This is a contribution that never depreciates, can be kept as a family heirloom and inherited by descendants. Therefore, it is important to choose the right product, which will not only become a decoration, but will also provide a successful investment. The ability to distinguish a fake from an original, a high-quality product from a low-quality one, guarantees confidence in the future.

Source: https://gems-and-jewels.ru/karatnost-zolota.html

18 karat gold - what standard is it?

Gold grade is a designation showing how much precious metal is contained in an ornament or piece of jewelry. Determination of the sample and branding is carried out by a specialized institution that exercises control over the metal. Many people are interested in what carats are, how they are determined, and what standard will correspond to, for example, 18k. Let's look at the question: 18 carat gold - what standard?

Most countries in the world determine the amount of gold contained in jewelry using karats. This measurement system has been used for a long time. A pure alloy, according to this system, is approximately equal to 24 carats.

But what if you are interested in the question of 18 carat gold, what is it? Nothing complicated. This is 750 standard, that is, there will be 75 percent pure noble metal in such jewelry.

There are several dozen samples in total in the world. But only two measurement systems are used: carat and metric. Jewelry of 375, 500,585,750,958 samples is produced on the territory of our country. During the Soviet years, the 583 sample was especially popular.

Metric system

Using this system, you can determine how much pure metal is contained in the product. For example, 585-carat jewelry has 58.5% gold, and the rest is metals like copper, nickel, and silver.

The countries of the post-Soviet space, as well as Austria and Germany, use the system under consideration.

Carat system

The carat of gold shows the proportion of precious metal in the alloy. As noted above, pure gold in the metric system is an alloy containing at least 99% of the precious metal, while in the karat system it is a product of 24 carats.

What is the quality of gold

It is necessary to know not only the purity of 18 carat jewelry, but also its quality of manufacture. After all, a product made from pure alloy is more expensive, but it is less durable. Therefore, jewelers often alloy metal with other elements. Experienced collectors know that jewelry that is not 100% precious metal is much better than something made from pure gold. Such items have a larger number of fans, which means they are of higher quality.

Election norm

There is a double situation in answering the question of what is the demand for gold products. The standard choice in European countries is 18 karat gold. The sample does not interest buyers too much.

For consumers, especially women, it is enough to see that the jewelry has a rich yellow color and looks attractive. But in America, jewelry of 585 standard (aurum 14 carats) is in great demand.

The USA is the only country where the sale of products with a carat value of less than 10 is prohibited, while in the rest of the world the sale of jewelry made from 8-9 carat gold is common.

Caring for your decoration

Although the alloy is considered the strongest metal, it requires special care. Items must be stored in a dry place. If the owner of the product encounters chemicals at work, it is better not to wear gold jewelry. To ensure that the item is scratch-free, it must be stored in a special soft box. You should periodically check the condition of the jewelry and the integrity of its clasps. If there is the slightest malfunction, you need to take the gold item to a jeweler for inspection.

Metric systemCarat system

1000	24
958	23
916	22
750	18
585	14

As a result, 750 alloys are what most buyers settle on. This product is affordable, beautiful and will last a long time.

Source: https://ProDragmetally.ru/o-zolote/proby/18-karatnoe.html

What standard does 18 karat gold correspond to?

Gold and products made from it are now more popular than ever. There is probably no country in the world where this precious metal is not known and used. At one time, gold was not only jewelry, but also played the role of money in purchase and sale transactions.

Various states, independently or united, such as in Europe, adopted their own measure of the weight or volume of gold, as well as its quality. This is how the modern concept of karat appeared. Thus, in the foreign system, 18-karat gold is high-grade. What standard corresponds to it in the former countries of the Soviet Union? How to convert samples into carats of gold known to everyone in the world? To do this, you need to study two systems: metric and carat.

Metric system

This system shows the percentage of pure gold in jewelry. For example, the 585th alloy has 58.5 percent precious metal and 41 and a half percent additives of other metals.

Products made from pure gold, due to the natural softness of the metal, are not durable and will last a short time. Therefore, jewelers have to add impurities to the alloy to make the jewelry more durable.

The ligature in yellow metal products may contain mixtures of copper, nickel, silver, or palladium. Due to ligature additives, products come in different shades: white, yellow, pink and even black. In the post-Soviet space, the most common sample is 585.

Nowadays 18 carat gold (750 standard) is becoming increasingly popular, despite the fact that its price is high. The 583 standard, known in the USSR, is actually no different from the 585, but is now practically not used, since in 1995 it was replaced with a higher quality one.

A significant disadvantage of this test is its unpopularity in Europe.

Existing gold samples in Russia and the type of their mark.

Most often, jewelers use 585 standard to make jewelry. 18 carat gold, or 750 in our opinion, is suitable for creating not just jewelry, but, one might say, works of jewelry art. In this case, it is no longer the percentage of pure precious metal that is valuable, but the work of the jeweler and the complexity of the product.

18 karat gold, which is produced abroad, is different from our products, which have 750 written on the hallmark.

The alloy ligature used in the manufacture of jewelry in many European countries contains a larger amount of silver, while ours contains copper. Therefore, European gold has a yellow color, which, according to many, is a more noble color. And domestic metal is redder. Moreover, the product produced by us is more durable.

In the countries of the Vienna Convention (Germany, Austria) and the countries of the former USSR, the metric system described above is adopted. Some European countries and America use the karate system. All samples have their equivalent in carats.

Carat system

Carat is a unit of measurement for the purity of an alloy. 1 carat of gold is a measure of the same thing as a sample; it reflects the proportion of precious metal in the alloy. Therefore, the question of how many grams is is not relevant in relation to gold, but is only suitable for determining the mass of precious and semi-precious stones.

On foreign jewelry, the stamp contains information about the fineness, but only expressed in carats. The International Carat System shows the weight fraction of the precious metal in the alloy in 24 weight units.

Location of the mark with the carat value of the product.

Pure gold in the metric system is an alloy containing 99.9% precious metal; in the karat system it is 24K.

Just like the denomination numbers in the metric system, the carat of a precious metal displays information about the amount of yellow metal in the alloy. Thus, 9 carat gold consists of 9 shares (karats) and 15 shares of alloy materials. Which sample corresponds to this value? This alloy contains 37.5% gold, which corresponds to our 375 standard.

This image clearly shows the amount of pure gold in products of different carats.

The jewelry industry of mainland Europe uses 14 and 18 carat gold most of all, but which standard seduces the British? They prefer 9K.

In Portugal you can find jewelry with a unique carat value of 19.2 carats. In the USA, 10 carat and 14 carat are in use; which of the two is more popular? The championship belongs to 10-carat.

The countries of the Middle East, Southeast Asia and India traditionally produce jewelry in 22 carats, sometimes 23K. In Hong Kong and China, almost 24K gold is popular.

Formula for converting metric standards to the carat system

Many people ask the question of how to independently convert a metric sample into a carat sample and vice versa. There is a special formula for this that greatly simplifies the task.

So, this ratio looks like this: 24: 1000 = X: Y, where Y is metric. X - carat.

In order to calculate how many carats a sample represents, you must follow the formula X = 24 * Y: 1000. For example, 585 according to the formula X = 24 * 585: 1000 is 14 carats.

Conversely, metric is calculated as: Y = 1000 * X: 24.

10 carat gold is the most common in the USA; what standard it corresponds to in our country can be easily calculated using the same formula. So, 10 Carat is Y = 1000 * 10: 24 = 416.

Thus, 10 carat gold corresponds to 416 standard, but we do not produce such products.

Correlation of gold samples in different systems.

It is easy to calculate the remaining samples:

• 100% alloy is 24 Karat, which corresponds to 999 fineness;
• 75% of the yellow metal in the alloy is 18 Karat, which is identical to the 750 standard;
• 58.5% in the alloy – 14 Karat and equal to 585;
• 50% in the alloy is 12 Karat and, accordingly, 500 standard;
• 37.5% in the alloy is 9 Carats and, accordingly, 375;
• 33.3% in the alloy is 8 carats and 333 in the metric system.

24 and 18 karat gold belongs to the high-grade group, 12 and 14K jewelry belongs to the middle group, 8 and 9 karat gold belongs to the low-grade group.

https://www.youtube.com/watch?v=pKAS5cAqZsE

Color options for rings of various samples.

A higher percentage of precious metal (or carat value) in jewelry makes it appear more vibrant in color and increases the price.

Distinguish gilding

Gold jewelry from countries such as Italy, Turkey, China, Switzerland often does not meet the Russian standard, that is, they do not always have the required quality. This often happens because they are imported into the Russian Federation outside of customs control, and therefore the assay authorities do not check such jewelry.

According to statistics, more than 72% of imported gold is fake, so you need to be careful and attentive when choosing jewelry.

It must be remembered that foreign gold (even if it is genuine) has differences from locally produced gold in composition and color, and is also less durable.

The shade is in most cases white or yellow, since the products contain a lower percentage of copper in the alloy. You also need to be wary of the fact that 18-karat white gold is often replaced with cheaper silver.

Source: http://golden-inform.ru/proby/zoloto-18-karat-kakaja/

18 karat gold, what standard

The sample depends on the content of pure metal in the alloy; the more of it, the higher the numerical value. Gold 999.9 is a bank bullion, a currency that is not used for the production of jewelry for a number of reasons. It is very soft, deforms at the slightest impact, it is not for nothing that there is a way to test it “by the tooth”. There are also many technological difficulties associated with high melting points, crystallization rates and surface tension.

750 gold

The most common standard is 585 gold – this is the result of a long search for the best ratio of quality characteristics and cost. Such jewelry is the most popular and is in the budget segment of the market. For the production of luxury products with precious stones, 750 standard is used, which is much more expensive.

Red jewelry is quite rare; the vast majority have a yellow tint, closer to pure metal. A special place is occupied by noble white gold, obtained by adding platinum or palladium; it is almost always used for the production of diamond jewelry.

Spool test

It must be added that 18 carat or 750 standard is not very popular in our country. The explanation for this can be found in history. In Tsarist Russia there was no such standard for determining the quality of gold. Pure metal corresponded to 96 spools, and for production the 56 standard was most often used, which corresponds to the modern 583 standard.

An alloy with a gold content of 75% was not used at all; the next after 56 was 92 spools - with 95.8%, or 958 fineness, an alloy with a minimum amount of impurities, almost pure. Such jewelry is now very rare, they can be valued as antique.

The conclusion from all of the above is simple - 18 carats corresponds to 750 gold. However, such a mark does not guarantee anything and the likelihood of purchasing a fake, especially in exotic countries, is very high. Be careful to avoid disappointment and not buy simple jewelry at the price of luxury jewelry.

Source: https://999proba.com/18-karat-zolota-kakaya-proba/

18 carat gold: 750 hallmark - what is it and how much does it cost?

Owners of jewelry that were purchased abroad are interested in what the 18-karat gold standard means, what kind of metal it is: white, pink or yellow. Let's figure out what the carat system is for measuring the content of pure precious metal in an alloy, and how it differs from the metric system, which is common in the countries of the post-Soviet space.

The carat system assumes that the highest standard is 24 carats. This indicates 100% precious metal content in the alloy. But remember that it is almost impossible to actually achieve this, so in practice 24 carats means that it contains 99.9% of the precious metal. In the karat system, gold content is designated from 9 to 24 carats.

Features of 18 carat gold

An 18-carat gold hallmark corresponds to 750 metric hallmark. As a result, jewelry with this mark indicates that it contains 75% pure gold.

If the product has any standard (metric, spool), then determining the carat content of the material will not be difficult (use the table below).

We recommend reading: Hallmarks and tags on Turkish gold

Spool system	96	92	88	72	56	48	36
Metric system	999	958	900	750	585	500	375
Carat system	24	23	22	18	14	12	9
Specific gravity of pure gold	99,9 %	95,8 %	90 %	75 %	58,5 %	50 %	37,5 %

To determine the specific gravity of pure metal in an alloy, it is enough to use a special formula, according to which 24 carats is taken as 100%. The result is a carat equal to 4.17% of the total mass. Accordingly, if 4.17% is multiplied by 18 carats (in this case) we get 75%, which indicates 750 fineness.

The 18-karat gold standard is considered one of the most sought-after (along with 585). In fact, it is the alloy in which 75% pure gold is most suitable for use in jewelry.

Why exactly the 750th sample? Compared to the 999, items with the 750 stamp are denser and more resistant to wear, so such jewelry can be worn constantly. At the same time, the jewelry will have a beautiful shine. This is why 18k gold jewelry is the best investment.

Typically the alloy is light yellow in color, sometimes with a pinkish tint (depending on the alloy used).

We recommend reading: Green gold - an unusual alloy for unusual jewelry

The composition contains additives of 25% of the total weight of the product. The following can be used as impurities:

• copper;
• silver;
• nickel;
• platinum;
• palladium.

Each of the additives allows you to improve the properties of the metal, for example, increase resistance to wear, damage, take care of ductility, etc. The ligature also affects the color of the alloy. The table below will help you compare the composition and shades.

Try	Color	Gold	Silver	Copper	Palladium
18 carat	Red	75%	40%	21%	No
18 carat	Pink	75%	12,5%	12,5%	No
18 carat	Yellow	75%	17%	8%	No
18 carat	Greenish	75%	25%	No	No
18 carat	White	75%	5%	No	20%

These variants of metal compositions are the most popular, but some others can occasionally be found (usually used to coat products, for example, made of silver).

We advise you to read: 56 standard gold - what is it and the price per gram

Metal price

The market value of 750-carat metal (18 carats) per gram is about 2000-2200 rubles, depending on the region of sale and the current exchange rate on the world market. The price for scrap in a pawn shop is about 1800-1900 rubles, and a gram of 18-karat gold in jewelry stores costs from 3000 rubles. Additionally, the cost can be increased by the complexity of the design and the gemstones used.

In Russia, hallmarking and hallmarking are mandatory for all products made from alloys in which the content of pure precious metal exceeds 30%. The metric value of the sample is applied to the jewelry. If it is necessary to convert it to carat, the buyer must do this independently.

Source: http://inzoloto.ru/proby/18-karat-zolota

What standard of gold corresponds to 18 carats?

It is difficult to find a country on the world map in which gold is not valued, because various models of jewelry, parts for electrical appliances, bank bars, commemorative coins and even medications are made from this metal.

But aurum in all these products, with the exception of ingots, is present in combination with other metals, which deprive the gold itself of its original hyperplasticity and softness. The presence of impurities in the alloy led to the development of a system of criteria for assessing the authenticity of gold. We are talking about carat and metric standards.

Many people, especially those who live in Russia and post-Soviet countries, do not know how to convert carats into samples and vice versa. For this reason, the question often arises about what standard is 18 karat gold.

18k gold engagement rings

How to translate?

In the metric system, the amount of pure gold in a kilogram of alloy is expressed in grams, which can also be converted into percentages. For example, a combination of metals with a purity of 585, which is in demand among jewelers, contains at least 585 grams, or 58.5% aurum. If you subtract the number 585 from 1000 (the number of grams in one kilogram), you can get the amount of impurities of other metals that make the alloy more wear-resistant and durable.

In the karat system of samples, the main unit for assessing the authenticity of aurum is the carat - a unit of measurement of the purity of the precious component. The karat system of hallmarks consists of the following markings: 24, 18, 14, 12, 9, 8, where the number 24 corresponds to the hallmark 999.

Knowing this nuance allows you to correctly convert the units of measurement of metal purity into grams. To do this, you should take note of the formula that looks like this: 24/1000 = X/Y. In this case, X is the number of carats, and Y is the fineness.

So, if you need to find out how much pure aurum a raw material with a value of 18 carats contains, you need to perform several mathematical operations using the following formula: Y=1000*18/24=750.

Hallmark 750, which 18k gold has, is included in the metric hallmark system of the Russian Federation. What are the features of such a metal alloy?

Marking 750

If a piece of aurum jewelry is stamped with the number 750, this will mean that the metal alloy from which it is made consists of 750 out of 1000 units of a precious component.

18-karat gold can exist in different variations, depending on the composition of the alloy:

1. Red metal: 750 grams of aurum, 210 - copper, 40 - silver.
2. Pink: 750 grams - gold, 125 - copper, 125 - silver.
3. Yellow: 750 grams - aurum, 170 - silver and 80 - copper.
4. White: 750 grams gold, 50 grams silver and 200 grams palladium.

The high quality alloy is ideal for making jewelry. Gold items valued at 18 units are an indispensable attribute of luxury. In addition, the metal goes well with precious stones, which are used in bracelets, wedding rings, earrings and other accessories.

18 carat = 750 standard

The advantages of products marked 750 include the fact that they are luxury jewelry. The alloy, which is 75% precious, is the raw material for the production of jewelry sold under such famous brands as Tiffany, Bulgari, Cartier, etc. Many of these products are made by hand, and in a single copy, so their cost is impressive.

We should not forget about the disadvantages of such jewelry. It is known that the more aurum contained in the raw materials for the production of jewelry, the less wear-resistant it will be. The reason for this phenomenon is simple - in its natural form gold, of which 75% in the described combination, is very soft and flexible. Therefore, jewelry, in which this metal significantly predominates, requires careful handling, otherwise they will become deformed or scratched.

As for the price of such an alloy, it will differ markedly from that of classic gold marked 585. Thus, in Russia, 1 gram of 18-karat metal in jewelry will cost at least 4,500 rubles. This price can be 500-1500 rubles more, especially if we are talking about a complex product that requires high professionalism of a jeweler.

If we are talking about handing over jewelry to a pawnshop, then the price in this case will be significantly lower (almost 2-3 times). In Russia, pawnshops accept products and scrap from the alloy with a value of 18 carats for 1800-2000 rubles per 1 gram.

It is worth purchasing premium jewelry only in large and well-known jewelry stores, which carefully take care of their impeccable reputation and sell customers products of ideal quality.

Source: https://HochuZoloto.com/proby/kakaya-proba-zoloto-18-karat.html

Gold samples

The best alloys for gold are silver and copper, because these metals improve all the physical characteristics of the alloy. Pure gold is used very rarely, because it is too soft and easily deformed and scratched.

There are 4 sampling systems for precious metals in the world. The most common standard systems are metric and carat.

The metric gold standard system has been in effect in Russia since 1927. The fineness is indicated by a three-digit number and shows the content of pure gold in grams in one kilogram of jewelry alloy. For example, in 1000 of 585-carat alloy, 585 g is pure gold and 415 g is alloy. The following gold standards are accepted in the metric system: 375, 500, 585, 750, 950 and 999.

The karat gold hallmark system is used in the USA and Europe, and it is provided only for gold alloys. The fineness in karats shows the number of parts of pure gold from 24 parts of the alloy. For example, 18K standard means that in an alloy of 24 parts, 18 parts are pure gold, and 6 parts are alloy. If you divide 18 by 24, you get 0.75 or 750 from the metric system. The following units of measurement are accepted in the gold karat system: 9, 10, 14, 18 and 24 carats.

The relationship between the metric and carat systems:

— 9 carats = 375 standard: pure gold content 375 grams per 1 kg. (37.5%)

— 12 carats = 500 standard: pure gold content 500 grams per 1 kg. (50%)

— 14 carats = 585/583 purity: pure gold content 585/583 grams per 1 kg. (58.5/3%)

— 18 carats = 750 standard: pure gold content 750 grams per 1 kg. (75%)

— 23 carats = 958 standard: pure gold content 958 grams per 1 g (95.8%)

— 24 carats = 999 purity: pure gold content 999 grams per 1 kg. (99.9%)

Testing

A piece of jewelry produced in the Russian Federation must be affixed with at least two marks: a name mark and an assay mark.

Nameplate is an imprint of the manufacturer’s mark, which is placed on all jewelry made of precious metal. It contains the manufacturer's individual marks and marks indicating the year of branding.

The state hallmark (assay) is a special mark that is minted on jewelry (or applied in a non-mechanical way: by electric spark or using a laser) by state assay inspections. It means that the product has been tested by the state inspection and has a sample no lower than that indicated in the stamp.

The state hallmark consists of an identification mark and an assay mark, which can be affixed together (in one image) or separately. Since 1958, the ID badge has been an image of a hammer and sickle against the background of a five-pointed star.

This sign is still used today. Since 1994, an identification sign has been installed, representing a female head in a kokoshnik in profile, turned to the right.

The hallmark is a three-digit number indicating the number of weight units of the precious metal in a thousand weight units of the alloy.

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Source: https://gold.ru/news/proby-zolota.html