Jingxi jewelry had better be genuine, and the jewelry has an appraisal certificate. Jewelry has a broad sense and a narrow sense. Jewelry in a narrow sense refers to jade products, while jewelry in a broad sense should include jewelry, handicrafts or other treasures made of gold and silver and natural materials (minerals, rocks, organisms, etc.). ) has a certain value, collectively referred to as jewelry. Therefore, the ancients said that there were gold and silver jewelry, which distinguished gold and silver from jewelry. With the development of social economy, the concept of jewelry should be extended to include gold, silver and jewelry besides natural gems and artificial products. The industries dealing in these commodities are collectively called jewelry industry.