Superior Gemological Laboratory's services are truly unrivaled when it comes to service and quality, whether it is for appraisals, certificates or inspection reports. Thanks to a unique and proprietary custom-designed software, SGL is proud to be a GemRap Member which is the first and only provider of jewelry appraisals, diamond certificates and inspection reports with unique report numbers and access codes. This exclusive GemRap feature provides its members and authorized third parties online access to copies of the same report or certificate, with access to additional, high-quality and multi-angle digital images and 360° Animation of the merchandise.

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