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Alexandrite

Tsarstone collectors guide

The Gem and Jewelry Institute of Thailand

Offers authenticity of gemstones and their treatment reports, identification of pearls and their treatments, diamond grading and laser inscription on diamonds and colour gemstones.

The Gem and Jewelry Institute of Thailand
Homepage Address Contact
www.git.or.th Gemmological Research and Testing Building
Phayathai Road
Bangkok 10330
Thailand
N: Pen Chan
T: 662-218-5470-4
F: 662-218-5474
E: jewelry@git.or.th

IT Gem Testing Laboratory (GIT-GTL), has been accredited by The World Jewellery Confederation (CIBJO) as the CIBJO Registered Laboratory since May 2000.

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