Consistent with the CGA’s mandate to encourage the the dissemination of gemmological knowledge and to promote high technical and ethical standards, the Association works with affiliated schools to offer the Canadian Professional Gemmology Program. Affiliates teach the same material as the CGA offers directly, and graduates of affiliate programs are eligible to write the CGA’s qualifying examinations for Fellowship with the Association.


21 Ely Place London,
London, England,

The Gemmological Association of Great Britain, or Gem-A, is the world’s oldest educator of Gems and Jewellery.  They taught their first first gem course in 1908.  Today in 2018 Gem-A courses are taught in seven different languages and in 26 countries around the world and there designations are recognized around the world.

Partners in Ethical Education

American Gem Trade Association

3030 LBJ Freeway, Suite 840
Dallas, Texas