Yes, the Jewelry Testing and Research Center of the Jewellery Chamber of the All-China Federation of Industry and Commerce, referred to as the "Jewelry Testing Center of the All-China Federation of Industry and Commerce" for short. Founded in August 2002, it is a branch directly under the Gold, Silver and Jewelry Chamber of Commerce of the All-China Federation of Industry and Commerce and a vice-president unit. It has the status of an independent legal person. In February 2003, the center was recognized by the National Accreditation Committee of China Laboratory and the metrological certification by the National Accreditation and Supervision Committee of China. It is a national jewelry testing institution. Landlord, rest assured.

The reference is the certificate inquiry office, which can be inquired by number.