Gem-A, The Gemmological Association of Great Britain
Study gemmology in person at Gem-A's Ely Place premises or online, from the GemINTRO introductory course through the Gemmology Foundation and Diploma to a five-day Diamond Grading short course, plus in-person and online workshops.
The visit
Why it is worth the trip
These are the qualifications and practical exercises behind the identification and grading language used in the trade, taught with stones in hand.
Before you go
Gem-A describes GemINTRO as suitable for beginners and enthusiasts and the Gemmology Foundation as suitable for all skill levels, so courses are open to people outside the trade. Student membership is included with enrolment except for GemINTRO-only learners; teaching is also delivered through accredited centres in 19 countries.
Compiled from gem-a.com, read on August 16, 2026.
Opening times, seasons and prices change, and we are not the operator. Confirm directly with the venue before travelling. We take no commission on any visit.