To evaluate jadeite and hetian jade, you can go to the National Jewelry and Jade Quality Supervision and Inspection Center. 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. Valuation factor: head count, which is transparency.
Jade identification can be carried out from the following aspects: jade merchants or professional appraisers: you need to go to the jade professional market or merchants to find it. They usually have professional instruments and appraisal experience, which can provide more accurate quotations for jade appraisal.
To evaluate jadeite and hetian jade, you can go to the National Jewelry and Jade Quality Supervision and Inspection Center. 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.
Structure: After the jadeite is corroded by strong acid and alkali, some substances are brought in and out, and corrosion is formed on the surface and inside along the mineral crystal, resulting in internal connected cracks. Under the irradiation of transmitted light, we can see the crisscross cracks inside. Under the condition of reflected light, the corrosion pits or cobweb network structure on the surface are clearly visible.
Jade can go to an authoritative jewelry and jade appraisal institution with national qualification certification for instrument appraisal and issue an appraisal certificate. In this way, the result is exact, the authenticity is clear at a glance, and it can be foolproof.