Generally, jewelry will give customers a tag, and the product label is a must for customers. You can talk to the counter sales staff for details. The small label on gold jewelry is very important, with grams on it. In China, there are regulations on the imprint and identification card of gold products, which generally require the manufacturer's code, material name, content imprint and so on. No mark, the product is unqualified. The same is true internationally. But for some very small products, it is also allowed to be unmarked. Every piece of jewelry, like everyone else, has its own "ID card", and this "ID card" is the jewelry label. Jewelry labels, due to the particularity of materials, are waterproof, scratch-resistant and wear-resistant, and are widely used in the counter display of jewelry to clarify the parameter characteristics of the labeled jewelry. Such as: name, price, material, weight, barcode, etc.