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Last updates: | |
Decembre 2022 | Gemological and jewelers tools update |
November 2022 | Program of classes 2023 update |
June 2022 | Gemology, faceting and concave faceting new intensive 5 day classes |
February 2022 | Mineralshows in Switzerland 2022 update |
June 2021 | Before and after recutting for best brilliance. |
May 2021 | Second hand tools |
April 2020 | Jewelry projects for the home office jewelers tool box |