Gubelin Academy x TGJTA
THE GLOBAL GEM STANDARD, NOW IN BANGKOK! ELEVATING THAILAND'S GEM KNOWLEDGE.
The only chance in Thailand to learn the world-class gemmological standard directly from Gubelin Academy, combining Switzerland precision with hands-on expertise at the heart of the Thai Jewelry Hub.
Level 1 Introduction to the Big Three
Duration: 2 Full Days
Dates: May 21-22, 2026
Price: CHF 1,180.-
Level 2 Color Gem Professional
Duration: 5 Full Days
Dates: May 25-29, 2026
Price: CHF 2,390.-
Course Location: Thai Gem and Jewelry Traders Association, 52nd Floor, Jewelry Trade Center (JTC), Bangkok, Thailand
Instruction Language: English
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Level 1: Introduction to the Big Three (2 Days) - A fast-track introduction to Emerald, Ruby, and Sapphire.
- Master the 4Cs and understand the true meaning of Origin and Treatment.
- Learn powerful Storytelling to enhance sales and value proposition.
Level 2: Color Gem Professional (5 Days) - In-depth exploration of origins, treatments, and Color Calls (e.g., Pigeon Blood).
- Hands-on practice with essential gem tools and Gübelin Reference Stones.
- Master the loupe and tweezers for scientific diagnosis of inclusions.
* Limited to 10 participants for individual coaching.
Level 3: Advanced Microscopy (5 Days) - The practical culmination of your CGP journey.
- Master the microscope to examine inclusions and internal features for detailed treatment and origin determination.
- Gain insights into advanced gemmological examination and laboratory testing.
* Level 3 is currently offered in Lucerne (Switzerland), leading to the full Colour Gem Professional Diploma.

BECOME A CERTIFIED COLOR GEM PROFESSIONAL (CGP)
For registration and details, contact: [email protected]
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