Study Time

9 - 12 months


Gem-A Level 6 Diploma in Gemmology

Gemmology Diploma

Our Gemmology Diploma is the most prestigious international gemmological qualification in the gem and jewellery trade. You will look at a wider range of gems, synthetics and treatments, and will build upon the practical and theoretical knowledge learnt during your Gemmology Foundation course, leading to a more in-depth understanding of gemmology and the principles of gem testing and enhanced gem identification skills. Upon completion of the Diploma course you will be confident at handling, testing and identifying a wide variety of gemstones.

Graduates of the Gemmology Diploma course can apply for Fellowship of Gem-A, allowing them to use the letters FGA after their name. FGA status conveys a student’s knowledge, integrity, membership of a professional body and commitment to professional development, and is highly recognized within the trade. Your name will appear on the FGA and DGA register, available to the public to view on our website, so anyone can see that you are qualified and a registered Member with us — ensuring their peace of mind whilst advertising your knowledge and integrity.


You can enquire about one of our courses by using the form below. Simply select the course you'd like to attend, fill in your details and click submit. A member of our Education Department will review your form before contacting you about your enquiry.

Alternatively, you can download a course application form from our Student Resources section. Once you've completed this you can email this to us at or post it to: Education Department, 21 Ely Place, London, EC1N 6TD.

If you have any other questions you can e-mail us at or call us on +(44) 0207 404 3334.


Gemmology Diploma



CodeCourse TitleCourse DaysStart DateFinish datePrice*
D19EFEBGemmology Diploma On-Site Evening 9-month course (18:30 - 20:30)   NewMonday, TuesdayFeb 4, 2019Jan 28, 20204100.00 GBP
D19DFEBGemmology Diploma On-Site Daytime 4-month course (10:00 - 16:30)  NewTuesday, Wednesday (Thursday self study)Feb 5, 2019Jun 27, 20195900.00 GBP
D19OMAR-JGemmology Diploma ODL (with Tokyo lab class)   NewOnline CourseMar 18, 2019Jan 31, 20205215.00 GBP
D19OMAR-PGemmology Diploma ODL (with UK lab class)   NewOnline CourseMar 18, 2019Jan 31, 20204650.00 GBP
D19OMAR-UGemmology Diploma ODL (with USA lab class)   NewOnline CourseMar 18, 2019Jan 31, 20204650.00 GBP
D19OMARGemmology Diploma ODL (without lab class)  NewOnline CourseMar 18, 2019Jan 31, 20203800.00 GBP


If you can't find what you're looking for or you have any further questions, email us at