Generally, precious metal jewelry will be printed with words, which will indicate what kind of precious metal jewelry it belongs to. Gold generally has the words "900", "pure gold", "thousands of gold" and "9999".

Generally, there will be the LOGO or abbreviation of the manufacturer in printing. For example, Lao Fengxiang's jewelry generally has the words "Lao Fengxiang's thousand gold", and another example is that there is a famous manufacturer in Shenzhen called "Hao Yue", and the jewelry in their factory has the letter "YH" (the abbreviation of Hao Yue Pinyin Hao Yue). Your jewelry says "JR" 0 | "is the manufacturer's seal, JR should be the abbreviation of a manufacturer, and the number behind it generally represents the number of the factory produced by their manufacturer. There is another possibility, that is "? Actually, it's the number 1. Then there may be two meanings. First of all, it may be the 10 factory of JR manufacturer, and it is more likely that the ring slogan is "10" (the ring slogan refers to the diameter of the ring, and you are a girl with slender fingers, so what do I think? The number is 1, most likely 10. If you are a boy, then that number may also be 2, so you are wearing a ring with 20 laps. "