1, CGC, as the most authoritative jewelry appraiser certificate and national quality inspector in China, enjoys the highest status in China. It is the goal that people engaged in jewelry appraisal have been working hard, and it is also the certificate that must be obtained before becoming a jewelry appraiser.

2. The title of jade appraiser is intermediate, and the national quality inspector of jewelry appraiser. Jade, also known as jadeite, jadeite and Burmese jade, is a kind of jade. The correct definition of jadeite is fibrous aggregate composed of pyroxene minerals mainly composed of jadeite minerals, but jadeite is not equal to jadeite.

3. Jewelry appraiser: It belongs to quality inspection, and it needs a special institution to carry out testing and certification, and it is authorized. Signing some certificates has legal effect. Jewelry designers: there is no standard certification body at present; It can be said that it is a skill. Arts and Crafts Artist: It can also be said to be a major.

4, jewelry appraiser is an industry certificate, divided into 5 levels. A jeweler with a primary level of 5 has a preliminary understanding of jewelry, and can roughly distinguish common gems with the naked eye and basic knowledge.

5.GIC certificate, the qualification certificate of jewelry appraiser issued by Jewelry College of China Geo University, including GIC gemmology certificate, GIC diamond grading certificate and GIC jewelry appraiser qualification certificate. Britain's FGA is about colored gems.

6. Grade 12. NGTC is GIA's only partner in Chinese mainland, so its diamond color classification is similar to GIA's. According to the international diamond color classification table, it is represented by the English letter D-N, and * * * is divided into 12 grade.