Laboratory
Lotus Gemology
Bangkok, Thailand
Ruby, sapphire, spinel; origin reports
Lotus Gemology is a laboratory in Bangkok's Silom 19 Building that specialises in ruby, sapphire and spinel.
What it does
Identification, treatment detection and origin reports for ruby, sapphire and spinel, with research and publications on these stones.
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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