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【The gold ring】
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[buying term]
Press g to calculate money/press process to calculate money
"Like wall, some famous jewelry company, such as jin zhizun are by the gram to calculate money. These large diamond jewelry jewelry company do wholesale
Like diamond jewelry company is according to the process such as express to calculate money, is a famous jewelry e-commerce company, is also the domestic jewelry video the first brand of shopping. Prices are a lot cheaper than shopping mall.
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[classification terms]
Use "k gold," said the purity of gold: in theory, we called the content 100% of the gold 24 k;
So the calculation method for 100/24 (national standard) are shown in brackets:
GB11887-89 national standard, each k (the abbreviation of English carat, German karat, often writing "k") gold content is 4.166666%,
9 * 9 k = 100/24 = 37.5% (375 ‰);
14 k * 14 = 100/24 = 58.333% (585 ‰), in order to facilitate identification, put it at 58.5%;
18 * 18 k = 100/24 = 75% (750 ‰);
22 * 22 k = 100/24 = 91.666% (916 ‰), in order to facilitate identification, it is set at 91.6%.
100% in theory can be called a 24 k gold, but in reality there can be no 100% gold, so our country regulation: content above 99.6% (including 99.6%) of gold can be referred to as the 24 k gold.
These general specifications for jewelry, K gold content below 9 K gold ring cannot be prescribed by the state is called a gold ring.
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【Platinum ring】
[classification terms ]
Platinum (Platinum, Pt) for short, is a kind of natural generation of white metal.
Regulations of the state, only jewelry platinum content in 85% or more, can be called platinum jewelry, and must be with Pt logo.
Platinum ring is usually: (note: Pt850 refers to the platinum content up to eight hundred and fifty over one thousand, other in the same way)
/ Pt990 / Pt950 ring / Pt900 / Pt850 ring / Pt999 ring / (thousand foot platinum) ring.
So platinum ring does not exist the so-called purity of 18 k or 750 (or 75%).
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【Article is excerpted from: Web Search】
【Reserved Integrate / Just Reference】
【Translation is by Goolge】
