Welcome to the International School of Gemology’s Individual Gemology Class website. Here we provide you with amazing, and truly certified, learning opportunities in gemology, jewelry appraisal and jewelry sales at the lowest possible tuition in the industry. Here you can take a single course on a variety of subjects, or work your way course-by-course toward your ISG RG or RGA Diploma. Our purpose with this site is to make quality gemology education affordable to everyone. We guarantee the integrity of our programs as the finest quality, and our credentials to be the highest offered in the industry.

Learn more about the Individual Courses below, or get started by selecting the “Registration Here” menu above.


Learn how to grade diamonds, diamond history, diamond formation and more with this complete course in diamonds.  Learn More!

Colored Gemstones

A complete education on colored gemstones including formation, causes of color, and grading procedures. Learn More!

Tools and Techniques

Learn how to efficiently use the gemological tools to get the most accurate gem identification in the shortest period of time. Learn More!

Created and Treated

The only course of its type that teaches you how to identify and evaluate most known treated and created gemstones. Learn More!

Introduction to Watches

A foundation level course in watches and watch history to start you on a successful career as a registered watch professional. Learn More!

Pearls Course

Pearls are more popular than ever, and here is your place to begin your study leading to a successful career in pearls. Learn More!

Compare Online Programs

We are the internet’s only certified, professional gemology school with professional credentials and insurance industry certified courses. Learn More Here!

Coming Soon!

In the coming weeks we will be adding new and exciting new courses in Bead Identification, Gemologist Apprentice, Registered Gem Dealer Program and more. 



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