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About Us
Canadian Gemmological Association


The Canadian Gemmological Association (CGA) is a Canada-wide professional organization which has set the standard for excellence in the practice of gemmology.

It was founded in 1958 by Dean S.M. Field, and has since provided training in gemmology to persons dealing with gemstones in the jewellery industry and to hobbyists for better appreciation and possible new career opportunities within gemmology.

Whether you are a dealer, jeweller, retail salesperson, manufacturer, appraiser, hobbyist or consumer, a knowledge of gemmology can be of great value to you.