Invest in yourself and learn valuable skills around gemology.

Online gemology courses. Invest in yourself and learn valuable skills around gemology. Earn a certificate from IGS upon complettion.

From Actinolite to Zoisite, dig into every facet of the fascinating world of gems with IGS gemology courses!

Learn what you want

Pick and choose from what subjects interest you.

Guided experience

Courses are guided lesson-by-lesson with progress tracking.

Test your knowledge

Test your knowledge with written exams and gem ID exams.

Get your certification

Earn a certificate to help get a leg up in your career.

What students are saying

  • " The Diamond Specialist Course is excellent, as comprehensive as it could be, and its structure offers all the theoretical and practical knowledge for grading and evaluating diamonds. "
    Daniel PenescuIGS Pro Member

    IGS Mini Courses

    Save 50% as a Gem Enthusiast Member, or become a Pro Member for free access to all Mini Courses!

    More About Membership

    Diamond Fundamentals Mini Course

    • Beginner
    • 3 UNITS
    • 16 LESSONS
    Are you looking to buy a natural diamond? Or are you interested in learning more about the gemological characteristics of...

    Aquamarine Specialist Mini Course

    • Beginner
    • 3 UNITS
    • 13 LESSONS
    With gorgeous seawater colors, aquamarines have captivated jewelry lovers for centuries. If you’d like to learn more about these popular...

    Tourmaline Specialist Mini Course

    • Beginner
    • 3 UNITS
    • 14 LESSONS
    Tourmalines come in many varieties and colors — with prices to fit any budget. Gem lovers are sure to find...

    Gemology Tools Mini Course

    • Beginner
    • 5 UNITS
    • 38 LESSONS
    Do all the different tools in gemology confuse you? Whether you’re just setting up your at-home gem lab or an...

    Topaz Specialist Mini Course

    • Beginner
    • 2 UNITS
    • 6 LESSONS
    Is topaz your favorite stone? Whether you prefer its bright blue or imperial orange, you’ll love this course. Learn the...

    Garnet Specialist Mini Course

    • Beginner
    • 3 UNITS
    • 23 LESSONS
    Have you fallen in love with garnets? This versatile gemstone is a favorite among jewelers and gemologists, with a range...

    Citrine Specialist Mini Course

    • Beginner
    • 2 UNITS
    • 5 LESSONS
    Do you love the autumnal hues of citrine? Whether you prefer its deep oranges or pale yellows, you’ll love this...

    Buying Gems for Profit Mini Course

    • Beginner
    • 5 UNITS
    • 20 LESSONS
    The purpose of this course is to provide practical advice for gemstone investing. Key topics include: the market forces that...

    Emerald Specialist Mini Course

    • Beginner
    • 5 UNITS
    • 22 LESSONS
    Are you entranced by emerald greens? If this velvety gem draws your attention, you’ll love this course. Take an in-depth...

    Sapphire Specialist Mini Course

    • Beginner
    • 5 UNITS
    • 22 LESSONS
    Beloved for its celestial blues and violets and exceptional hardness and durability, the sapphire is a long standing favored gemstone....

    Ruby Specialist Mini Course

    • Beginner
    • 4 UNITS
    • 21 LESSONS
    Do you love all things ruby? If you find yourself drooling over this king of gems, you’ll love this course....

    Pearl Specialist Mini Course

    • Beginner
    • 6 UNITS
    • 25 LESSONS
    Attention all pearl lovers! If you just can't resist the draw of these spherical gems, you'll love this course. Dive...

    Opal Specialist Mini Course

    • Beginner
    • 4 UNITS
    • 22 LESSONS
    Attention all opal lovers! If you have found yourself mesmerized by the changing color patterns of this mineraloid, you'll love...

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