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Last updates: | |
June 2022 | Program of classes 2022 - 2023 update |
June 2022 | Gemology, faceting and concave faceting new intensive 5 day classes |
May 2022 | Mineralshow SVM in Vevey 2022 update |
February 2022 | Mineralshows in Switzerland 2022 update |
February 2022 | 5 day Lapidary class in Braunwald September 4th - 9th 2022 |
July 2021 | Montreux Expo September 2th - 6th 2021 & Program of conferences |
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 |
August 2019 | BlueChart Gemstones Identification by Nicolas Lazzarelli Updated Edition 2019 |