Coloured Stone
Testing
& Analysis.
Comprehensive identification, geographic origin determination, and treatment detection for coloured gemstones — leveraging multi-instrument analysis and ML-assisted diagnostics.
Rigorous Analysis for Every Stone.
Our coloured stone testing service provides a complete analytical profile of your gemstone. Using a systematic multi-instrument workflow, we determine the mineral species, detect any treatments or enhancements, and — where the data supports it — provide a geographic origin determination.
Every conclusion is backed by spectroscopic evidence, cross-referenced against our proprietary database, and reviewed by our senior gemmologists before report issuance.
Species Identification
Mineral species and variety classification
Origin Determination
Geographic origin based on trace elements and inclusions
Treatment Detection
Heat, filling, irradiation, coating identification
Colour Analysis
Spectrophotometric colour characterisation
Gemstones We Test
From Submission to Report.
Submit
Drop off or ship your stone to our lab
Register
Weigh, photograph, and assign unique ID
Analyse
Multi-instrument spectroscopic analysis
Review
Expert interpretation + ML cross-reference
Report
Generate certified digital/physical report
Deliver
Secure return with report & micro-tag
Analytical Arsenal.
Raman Spectroscopy
Molecular identification, inclusion analysis, and phase determination through laser-induced vibrational spectroscopy.
FTIR Spectrometer
Infrared absorption analysis for treatment detection — polymer impregnation, heat markers, and filler residues.
UV-Vis-NIR
Full-spectrum absorption mapping to determine colour cause, chromophore identification, and synthetic screening.
EDXRF Analyzer
Chemical composition and trace element profiling down to ppm precision for origin classification vectors.
Microscopy Suite
High-magnification inclusion study, growth structure analysis, and photodocumentation of internal features.
Photoluminescence
Time-resolved fluorescence for defect centre study and treatment-related optical signature detection.
What You Receive.
Certified Gemmological Report
Physical and digital formats with unique report number, QR verification, and micro-tag.
Spectral Data Package
Supporting spectroscopic data and inclusion photomicrographs (upon request).
Digital Verification
Online report verification via our public check system — instant, permanent access.
Service Levels.
| Service Level | Duration | Premium |
|---|---|---|
| Standard | 5–7 business days | — |
| Priority | 3–4 business days | x2 |
| Express | 1–2 business days | x3 |
Turnaround begins from the business day after sample registration. Complex origin cases may require additional time.
What a Report Looks Like.
Each report includes complete identification data, treatment disclosure, detailed assessment of mounted diamonds, and precious metal purity analysis.
View Interactive Sample ReportsSubmit Your Gemstone.
Ready to get your coloured stone tested? Contact us to begin the submission process or visit our Bangkok facility.