China gold seal symbol is "China gold+gold content". Due to the national regulations, all gold jewelry will be stamped with steel seal now. For example, XJ is the name of the manufacturer, and thousands of gold represents the purity of 99.99%. If it is pure gold, it is 99.9%. When buying gold, we must pay attention to the steel seal, from which we can see whether gold meets the national standards. Other seals of gold ornaments: 1, pure gold: that is, the gold content is not less than 990, marked as "pure gold", "gold 990", "G990" and "AU990". 2. Thousands of pure gold: that is, the gold content is not less than 999, and the marks are "Jin 999", "G999" and "AU999". 3.k gold: colored gold, which refers to precious metals with a gold content between 8K and 24K. 18K gold has a gold content of 750‰ and is marked as "750" and "18K". 14K gold has a gold content of 585‰ and is marked as "585" and "14K".