The difference between the GRA certificate and the GIA certificate is as follows:
① GIA is a non -profit institution, and the funds are donated by the jewelry industry. ②Gia's main service scope lies in the education and research of jewelry identification and professional knowledge, which is well recognized by the global jewelry industry; GRA studies Mosangstone, while Mozangstone is in nature. One -tenth -tenth type of jewelry.
extension information: gia certificate can be divided into five parts, the reading description is as follows: , Institute America
The American Mosani Diamond Certificate is GIA, GIA is the most authoritative certificate, while domestic GRA certificates and GTC, GRS, BIA and other certificates are not authoritative. GIA was founded by Robert M.Shipley in 1931. GIA was promoted to the founder of the internationalization of diamond appraisal certificates; GRA was currently nowhere to verify that it has nowhere to verify its authority.
The difference between the GRA certificate and the GIA certificate is as follows:
① GIA is a non -profit institution, and the funds are donated by the jewelry industry.
②Gia's main service scope lies in the education and research of jewelry identification and professional knowledge, which is well recognized by the global jewelry industry; GRA studies Mosangstone, while Mozangstone is in nature. One -tenth -tenth type of jewelry.
extension information:
gia certificate can be divided into five parts, the reading description is as follows:
, Institute America
The American Mosani Diamond Certificate is GIA, GIA is the most authoritative certificate, while domestic GRA certificates and GTC, GRS, BIA and other certificates are not authoritative. GIA was founded by Robert M.Shipley in 1931. GIA was promoted to the founder of the internationalization of diamond appraisal certificates; GRA was currently nowhere to verify that it has nowhere to verify its authority.