U.S. federal trademark · Serial No. 87797433 · Reg. No. 5569840
[ Printed certificates of authenticity of diamonds, gemstones and pearls; and printed certificates of grading of diamonds, gemstones and pearls ]
Gemological services, namely, providing identification, authentication, and grading of diamonds, gemstones and pearls, and issuing certificates to such grading; and precious metal assaying
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