When indicating the gold content, the words "99" or "24K" indicate pure gold jewelry, and K gold jewelry indicates the corresponding K number according to the different gold content. For example, K gold jewelry marked "18K" has a gold content of 75%. In addition, there are seals indicating the origin of different manufacturers on the jewelry. Real gold jewelry is standard, complete and stamped.
Thousands of gold with a gold content of not less than 999 is called thousands of gold, which is the highest value in the naming of jewelry colors. The imprint is thousands of gold, 999 gold, gold999 or g999. 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.
Extended data:
Measures for the administration of gold jewelry production:
1, standard gold ornaments
Refers to gold products produced according to national standards, including pure gold and thousands of pure gold; The designated sales unit of standard gold ornaments refers to jewelry gold shops or department stores that abide by these measures and are evaluated by Fujian Baoxie, with quality up to standard and standardized price composition.
2. Quality requirements
The nominal value of gold content of OTC pure gold jewelry and thousands of pure gold jewelry must be consistent with the actual test results (to ensure that the gold content of the sample is detected in a uniform state after melting); Each piece of jewelry must be engraved with the material name, material content and manufacturer code according to the standard. Every piece of jewelry must have a quality certificate tested by an inspection agency.
Baidu encyclopedia-thousands of gold
Baidu encyclopedia-gold jewelry