SGL – Solitaire Gemmological Laboratory

Main Partner


SGL is the first International Gemmological Laboratory in the United Kingdom to specialized in certifying diamonds and diamond studded jewellery and to offer Mobile Laboratory services. Continuing its expansion in the global market after the United States, SGL has announced the launch of its new Lab in Surat, the diamond hub of India. With SGL’s 16th lab on its global charter, it aims to continue to provide reliable and standard gemmological evaluation for diamonds and coloured stones. Having set foot in Surat SGL also disclosed its commencement of Lab-grown diamond and jewellery certification. It will be certifying natural and laboratory-grown diamonds with help of their diamond screening device which screens for CVD & HPHT lab-grown diamonds and natural diamonds. And it also isolates and identifies moissanite and cubic zirconias. SGL aims to continue to provide reliable and standard gemmological evaluation for diamonds an coloured stones through its 15 laboratories located in several countries around the globe. SGL certifies each diamond with thorough detail supported by the latest technology and vast gemmological expertise of a highly qualified team.


DIAMOND Certification:

 SGL’s priority is to create in-depth awareness about diamonds. The SGL Diamond Report includes a detailed description of the diamond’s 4Cs. SGL Diamond Report is a mark of assurance for the buyer. SGL practices methods of certification that allow us to grade diamonds as accurately as the mounting permits.


Lab Grown Diamond Certification

In order to create awareness about diamonds and their origin, the SGL Diamond Report includes a detailed description of the diamond’s 4Cs along with the nature of the origin of the diamond. SGL practices methods of certification that allow us to grade lab-grown diamonds as accurately as mounting permits in the same manner as mined diamonds.

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