Laboratory
Gübelin Gem Lab Bangkok
Bangkok, Thailand
Coloured stones, diamonds, pearls; Gem Passport
Gübelin Gem Lab's Bangkok office, on Silom Road, gives the Thai trade local access to the Swiss laboratory.
What it does
Stones are received in Bangkok for coloured stone, diamond and pearl reports, including Gübelin's Gem Passport and origin opinions.
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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