The National Jewelry and Jade Quality Supervision and Inspection Center is a national professional quality inspection institution authorized by the relevant competent departments of the state according to law, and it is the authoritative institution for jewelry and jade testing in China. The National Jewelry and Jade Quality Supervision and Inspection Center is a national professional quality inspection institution authorized by the relevant competent departments of the state according to law, and it is the authoritative institution for jewelry and jade testing in China. The inspection center provides entrusted inspection services to the society, undertakes national market supervision and inspection, arbitration inspection, import and export commodity inspection, and formulates and revises relevant national standards. It plays a guiding role in standardizing the domestic jewelry market and promoting the healthy development of the jewelry industry.