Jewelry knowledge
Meilanxuan
fashionjewelryfactory.com
2017-08-11 12:28:35
Material distinction
Jewelry is generally divided into gold (gold), platinum (Platinum) and silver (silver).
Jewelry is generally divided into gold (gold), platinum (Platinum) and silver (silver).
Among them, gold and platinum can be divided into 5K, 9K, 10K, 12K, 14K, 18K, 20K, 22K and 24K several grades (the so-called K is calculated in 0.9999 of the content of 1/24).
In recent years, a new metal called rose gold, is actually adding copper 18K gold, because the copper color makes the gold looks pink, so called pink gold.
For example, suppose there is a kilogram of K gold, the gold content is: 9k=375g, 14k=585g, 18k=750g, 22k=916.6g, and 24K is equal to 999.9g.
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Main features
Silver jewelry is soft and easily discolored, so some other metals are usually added to reduce it. In general, 925/1000 is usually used to make the ratio, so the general silver jewelry is the standard 925 silver, and gold and the distinction between the law is different.
Silver jewelry is soft and easily discolored, so some other metals are usually added to reduce it. In general, 925/1000 is usually used to make the ratio, so the general silver jewelry is the standard 925 silver, and gold and the distinction between the law is different.
In recent years, a new metal called rose gold, is actually adding copper 18K gold, because the copper color makes the gold looks pink, so called pink gold.
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In 2006, the market appeared a kind of high-purity white gold Au950, containing gold 950 grams, /1000 grams!
For more information, please click earring manufacturer china.