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What kind of Liu Fu jewelry is the diamond national inspection certificate?
1.GIA diamond certificate The GIA diamond certificate is provided by the Gemological Society of America. It is an independent non-profit organization. As an authority in the gem industry, it is famous for its impartiality. The breakthrough of this university

2. IGI diamond certificate provided by the International Gemological Institute IGI diamond certificate Do Liu Fu jewels and diamonds have gia certificates? IGI International Gemological Institute in Antwerp is the oldest gemological institute in the world, and the authority of its diamond certificate is recognized by the world. IGI

3.AGS diamond certificate AGS diamond certificate provided by American Gemological Association,