Testing
FT-IR Spectroscopy
FT-IR analysis measures a material's absorbance of infrared light at various wavelengths. The WGI laboratory provides information about the material's chemical composition, which aids the identification of treatments, origin and synthetic materials, alongside observation under magnification.
What the service provides
- Insight into the material's chemical composition
- Support for treatment and synthetic identification
The process
- 01The stone is prepared and placed in the FT-IR system
- 02Infrared absorbance is measured across wavelengths
- 03The spectrum is interpreted with magnification findings
What a report may contain
- FT-IR findings as part of the relevant report
Who it is for
- Dealers and laboratories needing advanced testing
- Collectors of high-value stones
Report contents depend on the item submitted. WGI describes the characteristics found; results cannot be guaranteed in advance.
World Gemological Institute
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