Gem Reference › Singapore Gem Labs › SGL Labs
Global diamond certification house — London-founded, Singapore presence
| Founded | 2007, London (per SGL\'s website) |
| Footprint | 25 locations across 5 countries as published by the company, with experience centres (Dubai, Mumbai among them) and Singapore presence |
| Services | Diamond certification; experience centres where clients watch the certification process |
| Website | sgl-labs.com |
SGL Labs (Solitaire Gemmological Laboratories) presents itself as a global diamond certification house founded in London in 2007, now spanning 25 locations. Its distinctive model is transparency-as-service: "experience centres" where clients watch gemmologists run the certification process with state-of-the-art instruments in front of them.
A global certificate is a document; what it means for YOUR stone still needs a reading eye. Whichever laboratory you use — SGL, GIA, IGI, or the Singapore laboratories in our full guide — the same three checks apply: does the report match the stone (girdle inscription), what exactly do the grading words mean, and what does the certificate NOT cover (treatment history on older reports, valuation, origin unless stated). Training that eye is what gemmology education is for.
Is SGL Labs in Singapore?
SGL Labs operates a global network (25 locations, 5 countries per its website) with Singapore presence. Its headquarters heritage is London, founded 2007.
What is an SGL experience centre?
A facility where clients can watch the diamond certification process live, with gemmologists demonstrating each step using advanced instruments.
Laboratories verify; gemmologists understand. JDMIS teaches the trade's gem knowledge in two steps — no science background needed:
Free while you read: the Gem Globe shows where the world's gemstones come from, and Name That Gem lets you test your eye with real instruments.
Profile information gathered November 2026 from the organisation's own public website (linked above) and other published material. Directory pages are maintained by JDMIS for public education; organisations can request corrections. JDMIS is an independent education provider and is not affiliated with the laboratories listed.