GIA’s mission is to ensure the public trust in gems and jewelry by upholding the highest standards of integrity, academics, science, and professionalism through education, research, laboratory services, and instrument development.

Because diamonds are so prized and important to the jewelry trade, it’s essential to have a universal grading system for comparing their quality. In the 1940s and 1950s, GIA developed the 4Cs and the GIA International Diamond Grading System to objectively compare and evaluate diamonds.
GIA is the creator of the famous 4Cs of diamond value (Color, Clarity, Cut and Carat weight).

GIA laboratories serving the diamond grading needs of the world are now operational in Botswana, Hong Kong, India, Israel, Japan, South Africa and Thailand, in addition to the US locations of New York and Carlsbad. GIA’s Laboratory in Bangkok, Thailand, is presently one of three full-service (diamond grading, colored stone identification and origin determination, pearl identification and the all-important research element) GIA Laboratories outside the United States of America.

GIA laboratory in Thailand started out as GIA research Thailand in 2006. It provides a significant research element for both the local and international colored gemstone community through its renowned Field Gemology Program, detailed sample analyses, and on-line PDF publications. This research element significantly supports the gemstone identification and origin determinations the GIA Laboratories in Bangkok, Carlsbad, Hong Kong, New York and Tokyo make for the industry and consumers alike.

GIA laboratory and campus in Thailand are conveniently located in the U-Chu-Liang building positioned immediately opposite Lumpini Park, between Sathorn and Silom, on Rama IV Road. The building is within a few minutes’ walk of the Sala Daeng Skytrain (BTS) station and approximately equidistant between Lumpini and Silom MRT stations. U-Chu-Liang building is also served by two taxi ranks and has ample in-building parking.

Known Across the World

GIA Diplomas – Emblems of Credibility

A comprehensive GIA education is considered the pinnacle of training and professional development in gems and jewelry. We teach using the latest research, technology, and time-tested skills, while instilling the importance of professional integrity in our students. A true mark of global distinction, a GIA diploma is a symbol of knowledge and trust.

For more than 80 years, GIA has been the starting point for the world’s premier gemologists, top jewelry business owners, successful designers, bench jewelers, and leading retail sales professionals. Our credentials are coveted, respected, and known everywhere. Earning a GIA diploma gives you the expertise and confidence that can help you create the career of your dreams.

GIA in Thailand is one of the best places in the world to learn about gems.

Long known as a major market for colored gemstones, and the world capital of ruby and sapphire, Thailand is also a major diamond cutting and jewelry manufacturing center.

GIA Education in Thailand was established in 1993, and was located in the heart of the jewelry district in Bangkok before moving to the 2nd floor at U-Chu-Liang building on Rama IV road. Students in Bangkok have the additional opportunity to locally network and source. For more than 20 years, GIA in Thailand has offered a wide range of classes, programs and services which are delivered by our highly qualified and dynamic faculty and staff.

You have a unique opportunity to train at GIA and at the same time, explore this important gem and jewelry market. Few centers can offer the experience of visiting mining, cutting, treatment, and trading centers, all within easy reach.

At GIA campus in Thailand, you gain access to an extensive gemstone collection. Under the guidance of trained professionals, you quickly develop the skills you need to quality grade diamonds, and identify natural, synthetic, imitation, and treated gemstones.