CMA appraisal agency * * * is divided into two levels, the national level: it is the jewelry and jade testing center of the State Bureau of Technical Supervision, and the appraisal certificate issued is the highest appraisal level, which is generally effective in the world; Provincial level: 19 Jewelry and Jade Testing Center authorized by the State Bureau of Technical Supervision is located in major jade distribution centers in China, not in every province. The appraisal certificate issued by the Jewelry and Jade Testing Center of the Provincial Bureau of Technical Supervision is generally valid throughout the country.
The CMA certificate of extended information can be inquired on the corresponding website, and of course it can also be inquired by telephone; After a jade article is appraised, there will be an appraisal certificate, which is the "ID card" of this jade article. The appraisal certificate can be obtained immediately after the appraisal. After 15-20 days (appraisal institutions usually log on to the website once every half month), they can check it on the corresponding website. During this period, they can log on to the website after telephone inquiry. If you can't find it, the CMA certificate is fake!
CMA certificate has the quality of jade, and it is weighed by a special balance for weighing diamonds (the balance of technical supervision bureau should be the most authoritative! ); Although jadeite can imitate the photos on the appraisal certificate, it is difficult to achieve consistent quality. If the jade quality appraisal certificate you bought does not match, it is "genuine jade"!