Gem-A (The Gemmological Association of Great Britain)

Gem-A (The Gemmological Association of Great Britain)

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Gem-A, is the world’s longest established provider of gem and jewellery education. Our prestigious Gemmology and Diamond Diplomas, taught around the world, are globally-recognised as qualifications of the highest status. Diploma graduates may apply for election to Fellowship (FGA) or Diamond Membership (DGA) of the Association.


  • Education: Gemmology Foundation

    The Gem-A Gemmology Foundation course is ideal for those keen to get the best start in their gemstone education. If you are passionate about gemstones...

  • Education: Diamond Diploma

    A comprehensive understanding of diamonds and diamond grading is essential for the buying, selling and trading of diamond. One of the most valuable di...

  • Education: Gemmology Diploma

    The Gem-A Gemmology Diploma is the most prestigious gemmological qualification in the gem and jewellery trade. It builds upon the knowledge learned du...

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  • Gem-A Instruments Catalogue 2017 10.68 MB

    Browse the range of gemmological books and instruments available from Gem-A. Don't miss out- pre-order ahead of IJL by emailing

    10 Jul 2019

  • Gem-A Prospectus 2017-2018 2.82 MB

    If you are interested in studying gemmology, take a look at our prospectus. It provides detailed information on our courses, ways to learn and where in the world we teach.

    10 Jul 2019


  • Contact Information

    Gem-A (The Gemmological Association of Great Britain)
    21 Ely Place London EC1N 6TD United Kingdom
    Tel:  +44 2074043334
    Fax:  +44 2074048843


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