Charlotte Schoonjans
This certificate is proudly presented to
who participated in the 1-week Advanced Coloured Stone Course, which was held at the Swiss Gemmological Institute SSEF in Basel, Switzerland.
Pierre Lefèvre, MSc, DUG
Gemmologist
Dr. Michael S. Krzemnicki, FGA
Director SSEF
COURSE PARTICIPATION CERTIFICATE
Basel, 4 April 2025
The course consisted of the modules:
- Treatment detection of ruby and sapphire
- Origin determination of ruby
- Origin determination of sapphire
- Treatment detection and origin determination of emerald
- Origin determination of ruby
- Origin determination of sapphire
- Treatment detection and origin determination of emerald
ADVANCED COLOURED STONES
Issued to
Charlotte Schoonjans
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Credential Verification
Issue date: March 31, 2025
ID: 4ca91c19-07ad-4702-936a-e5f662f6f05e
Issued by
SSEF
Description
No information provided for this award.