1, jadeite certificate mainly depends on the description of jadeite identification elements. Such as certificate number, inspection conclusion, jadeite gram weight, size, refractive index, density, amplification inspection, etc. Certificate number/inspection number. You can check whether the purchased items are consistent with those on the certificate. If there is jadeite with code, you can compare it with the code on the certificate.

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

3. The front of the jade bracelet identification 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.

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

5, certificate number, you can check whether the items and numbers on the certificate are 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).

6. Appearance First, look at whether the jade photo on the jade identification certificate is consistent with the real thing, and observe it from the workmanship and color (the jade bracelet should also be checked for cracks). Total mass This is the weight of jadeite, which must be consistent with the certificate.

How to check the certificate of jadeite bracelet A?

Website query: In the era of network digitalization, jade appraisal institutions are also advancing with the times. Most formal and legal jade appraisal institutions have almost established their own websites, providing their own jade appraisal certificates to consumers through the Internet, so that consumers can easily distinguish the authenticity of jade appraisal certificates.

Log in to the website of the appraisal center on the appraisal book and enter the certificate number to query. Or call the official telephone number of the appraisal center (telephone number: 0 10-83554838) to inquire through the number on the certificate.

The ways to check the certificate of jadeite bracelet A are: computer login to the website of the appraisal center above the certificate. After logging in to the website of the appraisal center, enter the certificate number and scan the QR code on the certificate with your mobile phone. Call the contact number on the certificate to the appraisal center and inquire through the number on the certificate.

There are many styles of jade bracelet appraisal certificates, and many jade appraisal institutions can issue appraisal certificates. 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.

Jade bracelet a can identify the true and false. You can check the certificate code in official website. The information on the genuine jade bracelet in official website is exactly the same as the certificate, while the fake jade bracelet will be queried without trace or the information will be different.

How to treat Jade Certificate A?

Log in to the website of the appraisal center on the appraisal book and enter the certificate number to query. Or call the official telephone number of the appraisal center (telephone number: 0 10-83554838) to inquire through the number on the certificate.

If the jadeite certificate issued by the national authority is not natural jadeite, the result is only "jadeite", and the words "A" and "natural" will not be marked. Only natural A goods will issue the certificate of "Jade" result.

If it is natural jadeite A, the words "A" and "Natural" will be marked on the appraisal certificate.

When we receive the certificate of jade, we must see whether it is marked as "A goods". If not, jadeite is probably chemically treated.

A goods are both natural texture and natural color. Identification methods mainly focus on the following three points. (1) Look before you leap. Because of the relationship between mineral resources and exploitation and the specific situation of people's large demand. At present, there are few good Burmese jadeites on the market. In particular, there are few varieties with green color and bright ground color.

A jadeite has a strong luster, while B jadeite has been corroded by strong acid, and its luster will be weak, usually oily luster, resinous luster or even waxy luster. Look at the surface