💎 GEMOLOGY

Navratnam – 9 Precious Gemstones

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intermediate

online

💎

About This Course

A Professional Coloured Gemstone Course on the Nine Planetary Stones (Navagraha Stones) Where planetary wisdom meets professional gemology. The Navratnam – 9 Precious Gemstones Course is a specialized, hands-on course crafted for gem enthusiasts, jewellery professionals, astrologers, and aspiring gemologists who wish to master the nine precious planetary gemstones used in Vedic astrology and fine jewellery. Derived from the Sanskrit term Navaratnam, meaning “Nine Gems” (Ratnas), the course blends ancient astrological significance with scientific gemstone identification and grading techniques. The curriculum explores physical and optical properties, cutting styles, inclusions, classification, and on-sight identification of Ruby, Emerald, Blue Sapphire, Yellow Sapphire, Diamond, Pearl, Coral, Cat’s Eye, and Hessonite Garnet. Through hands-on training with a 10× loupe and microscope, learners develop the confidence to differentiate natural, synthetic, and simulant stones, assess quality and value, and follow ethical trade practices essential in today’s gemstone market. By integrating astrological relevance with professional gemological testing and market intelligence, this course empowers you to speak with authority, advise with accuracy, and sell with confidence. Whether you aim to build deeper customer trust, enhance jewellery and gemstone sales, offer reliable astrological recommendations, or specialize in planetary gemstones, this course gives you a distinct edge and recognition in the global gemstone and jewellery industry.

What You'll Learn

Physical & Optical Properties of Navagraha Hardness, density, cleavage & diagnostic properties for Navagraha gemstone identification Optical properties: refractive index (RI), birefringence, pleochroism, lustre in coloured gemstones Colour, durability & stability to assess gemstone quality and jewellery trade value

Gemstone Cutting, Fashioning, Shapes & Styles Cutting & finishing techniques for coloured gemstones and Navagraha stones Common shapes: faceted & cabochon, popular for planetary gemstones in jewellery Impact of cut & proportions on appearance, durability and market value

Inclusions & Microscopic Study Study of characteristic inclusions and internal features in Navagraha gemstones Identification of natural growth patterns for gemstone authentication Practical microscope observation & 10× loupe training for professional gemologists

Gemology & Classification – Precious Stones (Ruby, Emerald, Blue & Yellow Sapphire) Detailed gemology of Ruby, Emerald, Blue & Yellow Sapphire Classification by family, species, variety & crystal system Key identification features influencing colour, trade, valuation, and jewellery application

Diamond Gemology Diamond crystal system, chemical composition & hardness for identification Physical & optical properties affecting grading, brilliance, valuation & retail trade Identification of enhancements, synthetic diamonds and simulants

Other Planetary Stones (Pearl, Coral, Cat’s Eye, Hessonite Garnet) Gemology of Pearl, Coral, Cat’s Eye & Hessonite Garnet Classification, physical & optical properties, and trade nomenclature Practical identification using microscope & 10× loupe in coloured gemstone trade

On-Sight Identification & Trade Testing On-sight gemstone identification techniques for all Navagraha stones General testing procedures used in daily jewellery trade Simplified separation from simulants and gemstone look-alikes

Natural vs Synthetic & Simulant Classification Identification of natural vs synthetic coloured gemstones Simulants, look-alikes, trade comparison and disclosure norms Ethical practices for jewellery trade professionals

Practical Training,

Course Details

Duration

Contact for details

Format

online

Level

intermediate

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