Jewelry appraisal certificate is a public trust certificate issued to the authenticity and attributes of rare precious metals, precious stones or jewelry products, which is implemented by professional institutions and professionals who meet the appraisal qualifications.

The internationally accepted qualification certificates of authoritative jewelry appraisers include:

FGA member of the royal gemological society

GIG gem expert title

GIA Jewelry Appraiser, American Jewelry Association

Jewellery appraiser of IGI Belgium Jewellery Institute

Gem appraiser of China Jewelry and Jade Jewelry Industry Association

GIC China Geo University (Wuhan) Jewelry Appraiser

GCC China Geo University (Beijing) Jewelry Appraiser

Senior Diamond Grader of HRD Belgian Diamond High Council

CGC China registered jewelry and jade quality inspector.

Classification of jewelry appraisal certificates:

1、GIA

The certificate of diamond appraisal issued by Gemological Institute of the United States proves that internationally renowned diamond appraisal institutions have laser codes consistent with the certificate on the waist edge of diamonds, which can also be inquired in official website.

2、IGI

The International Gemological Institute in Antwerp is the oldest gemological institute. 1975 has established laboratories in new york, Bangkok, Mumbai and Tokyo.

Gubyrin

(Swiss Cooper Gemological Laboratory) Goblin-Gubyrin Gemological Laboratory is a world-famous colored gems identification laboratory with a long history. In the identification of gem processing, the identification of origin is in a dominant position.

4、GCGI

The GCGI certificate is issued by the British Gemstone Color Classification Association. This laboratory is the founder of colored gems classification in the world. It is the first institution in the world to study the classification of colored gems.