Services

Gemstone Testing & Certification

GRC provides professional gemstone identification and authentication services, with special expertise in emeralds. Each gemstone is carefully examined to determine its identity, natural origin, and observable gemological characteristics. Our certificates support informed decision-making for buyers, sellers, and collectors.
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Jewelry-Mounted Gemstone Testing & Certification

We offer reliable testing and certification for gemstones mounted in jewelry without removing the stone. Using advanced, non-destructive gemological techniques, we assess visible characteristics and authenticity while preserving the integrity of the jewelry piece.

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Natural Pearl Testing & Certification

GRC specializes in professional natural pearl testing and certification. Through detailed gemological examination, we identify whether a pearl is natural, cultured, or imitation. Our reports provide confidence and transparency in pearl authenticity.

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