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wholesale jewelry sighns Everyone said that gold has the value of preservation and value -added, so the collection and storage of gold became hot. So, how should the purity problem of gold be realized?
The purity of gold is roughly two ways to represent, one is represented by K gold, and the other is to directly use text to explain.
1. Use K gold to represent
. According to the regulations, the purity of gold is divided into 24 parts, each portion is 1K, and 24K is the ideal purity: 100%. In the daily gold market, some common purity represented by K gold is 12K, 14K, 18K, 22K, etc.
2. Use text to illustrate
The sign of some gold jewelry is not marked how much K is, but the logo of full gold and thousands of gold is marked. This is several standards for pure gold that often referred to. Foot gold means that the gold content of jewelry is not less than 990 ‰, and the same is true that the gold content of thousands of gold is greater than 990 ‰.
wholesale magnetic hematite jewelry K gold is also known as foreign gold. In addition to gold, it also contains copper and silver. It is used as K as a calculation unit, which is generally divided into 24K, 22K, 20K, 18K, 14K, 12K, and the gold content per K is 4.15 %.
K gold is calculated in color:
The color = k number × 4.15 % (gold content per k)
24k color gold is 24X4.15 % = 99.6 %
18K for the color gold. 15 % = 74.7 %
12k gold -colored gold is 12 × 4.15 % = 49.8 %
For gold jewelry with a gold content of not less than 950 ‰, it can also be represented by the Chinese word "foot gold".
replica hip hop jewelry wholesale The national standard "GB11887-8P" stipulates that the gold content is not less than 990 ‰ is sufficient gold, and the gold content is not less than 999 ‰. At the same time, the purity of K gold also stipulates, of which 8K's gold content is not less than 333 ‰, the gold content of 18K is not less than 750 ‰, and the gold content of 24K is not less than 999 ‰.
The abbreviation of each opening (English Carat and German Karat, often writing "K") gold content is 4.166%.
18K = 18*4.166%= 74.998%, 24K = 24*4.166%= 99.984%.
24K contains 99%gold, 22K contains 91.7%, 18K contains 75.1%, 14K contains 58.5%, and 12K contains 50%.
The gold jewelry currently sold in the market is divided into foot gold and K gold jewelry. According to the provisions of national standard GB11887, the content of several common gold jewelry is:
24K — At present, the international gold price market is occasionally marked with 24K gold jewelry. According to national standards, the theoretical value of 24K gold content should be 100 %, and gold has no barefoot. Therefore, 24K is not existing. Incorrect, not in line with national standards.
Thousands of gold -content is 99.9%, commonly known as three 9.
The foot gold -content is 99.0%, above, commonly known as two 9.
18K — the content is 75.0%. There are many colors of K gold, usually with yellow, red, and white. Among them, white K gold is actually alloy of gold, nickel, zinc, copper and other elements. It is not usually called platinum jewelry. Platinum refers to precious metal platinum (PT).