Official website of Lvzhuang Jewelry shows that Zhai Wansheng is the chairman of Lvzhuang Jewelry. Lvzhuang Jewelry is officially certified, and users will receive a jewelry appraisal certificate after purchase.

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 made of gold, silver and natural materials with certain value.