Gemological & Appraisal Service
At CGL-GRS Swiss Canadian Gemlab, a highly-qualified team addresses:
- Identification and disclosure of treatments on coloured stones
- Colour origin of coloured /colourless diamonds
- Grading and evaluation of rough diamonds
At CGL-GRS Swiss Canadian Gemlab, after gemologists identify and grade the gem and record any sign of treatments the item will be evaluated, if requested by the client.
Ethical appraisal services are offered to the trade and to consumers.