Thousands of gold with a gold content of not less than 999 is called thousands of gold, which is the highest value in jewelry color naming. The stamps are thousands of gold, 999 gold, 999 gold or g999 gold. The imprint of gold jewelry includes manufacturer's code, material and purity, such as X Gold 990, XAu990 and X Pure Gold.
Where the letter X is the manufacturer's code. When jewelry is made of precious metals with different materials or purities, the materials and purities should be indicated separately. When jewelry is too thin or too small to print, it should be accompanied by a logo containing the contents of the imprint.
On the eve of the Spring Festival of 20 15, the National Standardization Administration Committee published the revision of GB 1187-2012 "Provisions and Naming Methods of Precious Metals in Jewelry", which took effect on May 4, 2000/6. In the future, even gold with a purity of 999.0‰
Thousands of gold exchange
Canceling the title of "thousands of pure gold" and calling it "pure gold" does not mean lowering the standard level. The standard revision only standardized the naming, and consumers can still choose products with different contents according to their needs. As far as price is concerned, there is no change. 999‰ gold is still 3 15 yuan per gram, and 990% gold is still 3 12 yuan per gram.
The insiders believe that the cancellation of the title of "thousands of gold" is to guide consumers not only to pay attention to the purity of gold jewelry, but also to the design and technology of jewelry.
Refer to the above content: Baidu Encyclopedia-Thousands of Gold