No, merchants selling jewelry will attach a jewelry appraisal certificate with the origin, material and expert's appraisal signature on it, while most YEATION jewelry in Tik Tok Zhou Ge does not have a production certificate, so it is not real jewelry. 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 valuable treasures made of gold, silver and natural materials.