One of the most important common terms in the gold market is carat, which indicates the purity of a piece of gold. Since the gold metal is very soft and malleable, it cannot be used in its pure form, and its alloy and combination with other metals should be used, and this is where the concept of carat is determined. In the gold market of Iran, there are various types of gold and each one is used for making jewelry, use in industries and investment.
What is Gold Class?
Carat is also called Karat, which is also called Karat in English-American language. For this reason, the carat symbol is the letter K; for example, 24 carat gold, which is also called pure gold, consists of 99.99% gold and has the highest carat. On the other hand, 18 karat gold, which is the most common type of gold in jewelry, has 75% pure gold. In general, two types of marks are engraved on the gold coins in Iran: It is multiplied with the expression k. The grade is shown numerically between 325 and 900. For example, on a gold piece that has 75% purity, Carat can be shown as 18k or 750.
Gold grade in Iran
▪️24 carat gold with 100% purity
▪️22 carat gold with 91% purity
▪️21 carat gold with 87% purity
▪️18 carat gold with 75% purity
▪️14 carat gold Carat with 58% purity
Also, the carat of foreign gold available in Iran is different depending on the country of manufacture. For example, Arab gold grades are usually 21 and 22, and lower grades such as 14 belong to European countries.
What is Gold Gold?
24-karat gold or pure gold is not combined with any other metal and therefore its purity is close to 100. This gold has a much yellower and brighter color than other golds; However, due to its high softness, it is not used in the manufacture of jewelry. Among the uses of 24-carat gold, we can mention the manufacture of medical equipment, use in the electronic industry, and the production of ingots and coins. It may be interesting to know that 24 karat gold is used in the production of some skin care products.
What is Gold or Gold 2?
22 karat gold is gold that is made of 91.67% pure gold. This gold is stronger than 24 carat gold and is used to make jewelry; But it should be kept in mind that its strength is not so high that it can be used to make jewelry with details or large stones.
What is Gold or Gold 2?
21 karat gold, which is also known as Kuwaiti gold, has a purity of 87.5%, and the rest of its components are composed of nickel, zinc and silver. The color of this gold is bright and bold. If you don't like your piece of jewelry to be very visible, it is better to avoid buying 21 carat gold.
What is Gold Gold?
20 carat gold is the gold that is mostly used in India and is not common in Iran; But due to its characteristics such as malleability and bright color, it is used in making Indian gold and goldsmiths all over the world are interested in it. In addition, the cheaper price of 20 carat gold has made it popular with middle class customers.
What is Gold or Gold 2?
18-carat gold is the most common gold in Iran, which is the most used in gold investment and jewelry making. The purity percentage of 18 carat gold is equal to 75%. It means that 75 units of pure gold and 25 units of other metals such as silver and copper are used in its construction. But its price is relatively lower. The code of 18 karat gold is defined as 18K, 18Kt, 18k, 750 and 0.75.

What is Gold or Gold 2?
17 carat gold is composed of 17 parts of pure gold and 7 parts of other metals, which makes its purity equal to 70.8. 17 carat gold is used in the design of old jewelry such as watch chains. The resistance of this type of gold is high against scratches and therefore they are a good choice for daily jewelry.
The difference between gold and carat in jewelry
One of the common mistakes in the gold and jewelry market is to confuse the gold carat with the carat in jewelry. Although both terms are related to gold and jewelry, they have completely different meanings. Carat is measured in units such as 24 (pure gold) or 18 (75% gold). The higher the carat, the more pure the gold.
▪️Carat in jewelry: Carat is used for the weight of precious stones such as diamonds and rubies. Each carat is equal to 0.2 grams. For example, a 2-carat diamond weighs 0.4 grams.
Important difference:
▪️The carat of gold shows the purity level.
▪️Carat determines the weight of the jewel and has nothing to do with purity.
Conclusion: When buying gold, pay attention to the carat, and in jewelry, consider the weight of precious stones. basis Measure the carat.

