Calculate the pure gold content:

According to the K-gold system, there are 24 kinds of K-gold, and 24k gold is pure gold with a theoretical value of 100%. Accordingly, the gold content of1k =124 and 14K gold is calculated as follows:14k =100%/24 *14 = 58.333% (585 ‰ For the convenience of identification, it is generally agreed that the gold content of 14K gold is 58.5%.

Extended data:

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K, which means gold, is directly related to the weight unit "carat" of precious stones. "carat" comes from French carat and "k" comes from French carat. In French, both words are pronounced "carat", which is easy to be confused. In order to distinguish the two, the weight unit of gemstones is "carat" and the symbol of gold position is "K".

However, in the weight of precious stones, 1 carat = 200mg; In the purity unit of gold, 1K means 1/24 or 4. 1666%, that is to say, the gold content is 1/24 or 4. 1666%.

18K gold means that the gold content is 18/24, that is, 75%, and the remaining 25% is other metals, usually copper and silver in gold ornaments. 24K gold means pure gold. Relatively speaking, consumers in China have higher requirements for the purity of gold ornaments, so in the China market, the more common gold ornaments are 24K and 18K.