Has anyone ever heard of a GHI certification? We are looking at a dealer in the New York Diamond district and he said he had a GHI certificate on his diamond....I can't find any information on the web on what this means?
GHI - is Gem House International.
They are located in 580 Fifth Avenue in the heart of the diamond district in New York.
They just started their website.
www.ghilab.com
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