U.S. federal trademark · Serial No. 77188755 · Reg. No. 3450574
printed certificates of authenticity of diamonds, gemstones, pearls and jewelry; printed certificates of grading of diamonds, gemstones, pearls and jewelry
gemology services, namely, providing identification, authentication, and grading of diamonds, gemstones, pearls and jewelry and issuing electronic and paper certificates relating to such services; preciuos metal assaying
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