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.-
* Important Condition: Level 2 cannot be taken separately. Required Level 1 as a prerequisite.
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]
Thai Gem and Jewelry Traders Association (TGJTA) is pleased to congratulate all participants who have been selected to advance to the next stage of the Gemports Award 2026 Jewelry Design Competition.
The Russian Federation has issued new guidelines for synthetic diamonds, to distinguish more clearly between lab-grown and natural stones.
he Gemports Colored Gemstone report reference document serves as a crucial tool for industry stakeholders worldwide.