The products of Zhejiang Jewelry are all certified.

Zhejiang Zhedi Jewelry Co., Ltd. was established by Zhejiang Institute of Geology and Mineral Resources on the basis of Zhejiang Zhedi Jewelry Co., Ltd. in, and is the only state-owned professional jewelry company in Zhejiang Province. With the technical support of senior experts who have been engaged in rock and mineral identification and jewelry and jade research for a long time in Zhejiang Institute of Geology and Mineral Resources, the company pioneered the operating characteristics of off-site sales and consultation of senior experts. The company has more than ten experts who have been engaged in the research and management of jewelry and jade identification for a long time, such as national registered jewelry quality inspector, FGA international jewelry appraiser and GIC national jewelry appraiser. It is a typical representative of technical jewelry and expert jewelry.