Hatton Garden gemmological lab expanding services for UK market.

Solitaire Gemmological Laboratories (SGL) is set to expand its operations, with the addition of gemstone certification and jewellery valuation services.

This means its operations will now include valuation services and coloured gemstone grading, following “extensive training and investment in the latest tools and equipment”.


The offer of coloured gemstone grading and jewellery valuations will be provided alongside SGL’s diamond grading activities.