wholesale jewelry in loop The diamonds I bought are only given to the GIA certificate and the certificate of quality inspection station of Nanjing University Jewelry Products. Among them, GIA gives a naked diamond certificate, and Nanjing's certificate is given a diamond ring certificate. grateful
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jewelry supplies wholesale usa Then you can get the ring to the authoritative government institution test center to test it, which is authoritative. The most authoritative in China is the national inspection, in Beijing. In other provinces, there is a saving city inspection. As long as it is a government agency, it will be more authoritative and can rest assured. The certificate of the university's institution is also possible, because the university will have a laboratory.
mary wholesale jewelry premier designs GIA is the world's most authoritative and American appraisal agency