Asian Institute of Gemological Sciences
The Bangkok trade uses AIGS for coloured stone and jade laboratory reports and for gemmological training.
The record
What it covers
Reports it publishes
Named as the laboratory names them on its own site. Report contents and wording are set by the laboratory, not by us.
- AIGS Full Report
- AIGS Diamond Report
- AIGS Master Gemstone Report - S
- AIGS Master Jade Report
- AIGS Master Gemstone Report
- Melee Testing Service
Worth knowing
AIGS runs both a gemmology school and a commercial laboratory. Source locality is an optional priced addition on the Full Report and is included as standard in the Master Gemstone Report. The institute's online report verification page served an under-construction placeholder when checked on 16 August 2026, so no working verification URL is recorded.
Compiled from aigsthailand.com, read on August 16, 2026.
We verify dealers, not stones. A laboratory report describes one stone on one date; it is not a guarantee of value, and it is not ours to stand behind.