Gem-A, which began as a Gemmological Committee of the National Association of Goldsmiths, first introduced a gemmology qualification in 1908 in order to encourage jewellers to understand the gems they were selling and to identify the fakes. Now, with the variety of gemstones encountered on the market and the diversity of treatments, synthetics and imitations, an internationally recognised qualification in gemmology is essential for any professional jeweller or gem dealer. Our qualifications will increase your career potential.

Course Options

The Gemmological Association of Great Britain provides a range of courses that lead to internationally recognised gem qualifications. 

• The Foundation in Gemmology course leads to the Foundation Certificate, enabling our new Cert GA status without need for membership.
• The Diploma in Gemmology course leads to the Diploma Certificate, and eligibility to apply for membership leading to FGA status.
• Diamond Grading and Identification course leads to the Practical Gem Diamond Certificate, a module of the Gem Diamond Diploma which enables graduates to apply for DGA status.
• The Gem Diamond Diploma course includes theory and practical examinations and enables graduates to apply for DGA status.
• Lab Classes and Workshops operate at many levels. Some provide a fantastic opportunity for the beginner or hobbyist to look a little deeper into the subject of Gemmology before embarking upon the full Foundation and Diploma. Some are aimed at seasoned Gemmologists and those in the trade wishing to deepen their knowledge.

You can study for these courses in some thirty countries around the world, but you must have the Foundation Certificate in Gemmology before you can advance to our Diploma in Gemmology exam.

FGA and DGA Status

As a Graduate of our Gemmology Diploma, you are invited to apply for election to Fellowship of The Gemmological Association and when elected may use the coveted initials FGA after your name for as long as you remain a paid-up member of the Association. Graduates of our Gem Diamond Diploma course may similarly apply for election as Diamond Members of The Gemmological Association and use the coveted letters DGA after their name as long as they remain paid-up members. For more information about membership, click here.