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A Professional Colored Gemstone Gemology & Identification Course
The Big 3 – Ruby, Sapphire & Emerald is a professional coloured gemstone gemology and identification course focused on the core of gemological study — the most precious and most actively traded coloured gemstones in the global jewellery industry. Covering ruby and sapphire (corundum) and emerald (beryl), the program develops a scientific understanding of gemstone formation, mineralogy, inclusions, treatments, and origin determination.
From geological formation to laboratory examination and market evaluation, learners study physical, optical, and chemical properties, microscopic identification, and practical trade testing methods used by gemologists, jewellers, and gemstone buyers. The course also explains natural vs synthetic and simulant separation, disclosure standards, cutting quality, durability, and pricing factors, linking gemological theory with real jewellery trade practice.
Exclusively designed for gem enthusiasts and industry professionals seeking in-depth knowledge and hands-on experience in the “Big Three” precious gemstones, this value-driven program builds strong coloured gemstone identification and grading skills. It prepares participants to work confidently in gem testing laboratories, gemstone trading, jewellery retail, and global sourcing, and to stay ahead in an increasingly competitive gemstone market.
Module 1: Gemstone World, Formation, Mining & History
Module 2: Gemology & Classification of The Big 3
Module 3: Physical, Optical & Chemical Properties
Module 4: Cutting, Fashioning, Shapes & Manufacturing Stages
Module 5: Inclusions & Microscopic Study
Module 6: On-Sight Identification & Trade Testing
Module 7: Natural vs Synthetic & Simulant Classification
Module 8: Practical Training, Pricing & Gemstone Markets
Mr. Rahul Desai - CEO of International Institute Of Gemology is a passionate mentor, educator, motivator, and instrumental in carving 30,000 plus careers for the Gems &Jewellery industry since 2 decades. Following his father’s legacy since 1965, IIG is the only private institute producing 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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