Looking at the jade certificate mainly depends on the description of the jade identification elements. Such as certificate number, inspection conclusion, jadeite gram weight, size, refractive index, density, amplification inspection, etc. CertificateNo./InspectionNo.: You can check whether the purchased goods are consistent with the goods on the certificate. If there is jadeite with code, you can compare it with the code on the certificate.

The front of the jade bracelet appraisal certificate: it is the issuing unit, and the testing institution can be the quality inspection station under the provincial quality supervision bureau or the quality inspection station under the municipal quality supervision bureau. Some colleges and universities offering jewelry majors are also eligible to issue appraisal certificates.

The identification of the certificate of jade bracelet can be carried out by looking at the mark of the certificate and checking the authenticity of the certificate.

First look at the jade appraisal agency. At present, the most authoritative assessment agency in China is NGTC directly under the Ministry of Natural Resources. Therefore, the jade inspection certificate issued by it has national authority and effectiveness.

Certificate number, you can check whether the number on the item and the certificate is consistent (there is also the possibility of inconsistency mentioned above); Generally, jade is written, and some even have a note at the back: A goods (you can't relax when you see it here, but you have to look at the following things). Quality (the weight of an article).