1. National Jewelry and Jade Quality Supervision and Inspection Center: it is a national professional quality inspection institution authorized by the relevant competent departments of the state according to law. It is an authority on the detection of jewelry and jade in China, and you can go to the local testing center for appraisal and evaluation. These institutions have advanced testing equipment and professional technicians, and can scientifically and accurately identify and evaluate jadeite.
2. Jewelry and jade quality inspection center: Every provincial capital city or big city has a related jewelry and jade quality inspection center, and you can go to the local quality inspection center for appraisal and valuation. These institutions provide independent third-party appraisal services, which are fair and authoritative.