Laboratory
Gem and Jewelry Institute of Thailand (GIT)
Bangkok, Thailand
Gemstones, diamonds, precious metals (national institute)
The Gem and Jewelry Institute of Thailand (GIT) is a public organisation set up by the Thai government to support the gem and jewellery industry, with a national laboratory on Silom Road.
What it does
Gemstone and diamond identification and grading, precious metal testing, research, standards work and training.
Using any laboratory
- Ask what the report will state (identity, treatment, origin, grade) and how long it takes; turnaround and fees change.
- Check a report online with the laboratory's own report-check service, and match the stone to the report.
- Reports from different laboratories can differ, especially on colour grades, treatment and origin. A report is an opinion based on the tests made, not a valuation.
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