A Professional Online Coloured Gemstone Gemology & Identification Program
Starting immediately, gem aficionados, jewellery professionals and aspiring gemologists can study the world’s most precious and most traded coloured gemstones from anywhere, at their own pace. This online gemology course combines scientific gemstone education with real jewellery trade practice to build practical gemstone identification skills focused on ruby, sapphire and emerald.
Through structured modules, visual lessons and guided observations, learners understand gemstone formation, mineralogy, inclusions, treatments and geographic origin. The program covers physical, optical and chemical properties, natural vs synthetic gemstone identification, simulant detection, coloured gemstone grading and valuation methods used in gem testing laboratories and jewellery markets.
Designed as a practical coloured stone certification course, it links gemological theory with real trade application — enabling participants to confidently identify, evaluate and handle precious coloured gemstones while building a strong foundation in coloured gemstone gemology, gemstone testing and global gemstone market knowledge.
Module 1: Introduction to The Big 3 Gemstones
Module 2: Formation, Sources & Mining
Module 3: Mineralogy & Gemstone Classification
Module 4: Physical & Optical Properties
Module 5: Inclusions & Internal Features
Module 6: Treatments & Enhancements
Module 7: Synthetic & Simulant Identification
Module 8: Cutting, Shapes & Quality Factors
Module 9: Pricing & Global Gemstone Market
Final Assessment & Certification
Mr. Rahul Desai - CEO of International Institute Of Gemology is a passionate mentor, educator, motivator, and instrumental in carving 30,000+ careers for the Gems & Jewellery industry since 2 decades. Following his father’s legacy since 1965, IIG is the only private institute producing 30,000+ students and 1,00,000 young enthusiasts and entrepreneurs for the various aspects of the gems & jewellery trade, and under his strong leadership, he has successfully established 5 branches pan India and has become the fastest growing institute in the world of Gem & Jewellery education field.
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“I joined as a jewellery designer and finally understood colour grading and gemstone durability. It completely changed how I select stones for my collections.”
Megha Iyer – Chennai, Tamil Nadu
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“I joined as a jewellery designer and finally understood colour grading and gemstone durability. It completely changed how I select stones for my collections.”
Megha Iyer – Chennai, Tamil Nadu
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