Welcome to the Centre de Gemmology du Quebec

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    Gemologist Appraiser

    Certified appraiser for diamonds, gemstones, pearls, rubies, emeralds, sapphires, gold and jewelry of all kinds.

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    Expert for various government agencies including Customs Canada, the Canada Revenue Agency and the Office of Consumer Protection of Quebec, as well as law enforcement agencies, accounting firms and auctioneers services.

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    Since 1974

    Jocelyn Gonthier, Gemmologiste Gradué (G.I.A)

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    Gemological Laboratory

    Our gemological laboratory offers services for consignment, estate valuation, diamond purchase, diamond sale, diamond repair, insurance and more