C’est avec beaucoup de fierté et de joie que nous vous annonçons la sortie du sixième numéro de la revue GEMMES. Au sommaire de ce numéro, vous retrouverez les contributions de Lauriane Pinsault, Mathieu Dekeukelaire, Madelaine Delacroix, Isabelle de Kerchove...
Marie Chabrol (1) & Charline Coupeau (2) Traduction, réalisée par Victoria Raynaud, de l’article Prim J. (2024) Blue sapphire and blue cheese in the French Jura. Jeweller Magazine. DOI : 10.63000/G6mcV225DfY9P Abstract THE SAGA OF AN EMERALD SET - Jewels can live...
Guillaume Soubiraa (1) DOI : 10.63000/G6gsV225NW62a Abstract MADAGASCAR FACING THE MINING CHALLENGE: ANALYSIS OF THE 2025 EVALUATION REPORT - On July 26, 2025, the African Minerals Development Centre (AMDC) published a 157-pages report assessing the management of...
Steven Riou (1), Aurélien Delaunay (1) & Emmanuel Fritsch (2) DOI : 10.63000/G6srV2252KXgt Abstract INCLUSION IMITATION IN NATURAL QUARTZ BY LASER ENGRAVING - This article describes a small near-colorless quartz (rock crystal) sphere containing four remarkable...
Justin K. Prim (1) Traduction, réalisée par Victoria Raynaud, de l’article Prim J. (2024) Blue sapphire and blue cheese in the French Jura. Jeweller Magazine. DOI : 10.63000/G6jpV225Mtkt4 Abstract BLUE SAPPHIRE AND BLUE CHEESE IN THE FRENCH JURA - The Jura Mountains...
Jean-Pierre Gauthier(1) DOI : 10.63000/G6jpgV225aDnz3 Abstract IMITATION OF THE SLOCUM STONE - Slocum stone (John L. Slocum, 1920-1988) is a fairly convincing opal imitation, featuring iridescence due not to diffraction by a two-...
Marie Chabrol (1) DOI : 10.63000/G6mcV2257L9gG Abstract Capucine Juncker - Jewelry historian and journalist, Capucine Juncker published a remarkable book a few months ago on the diamonds of Golconda. Legendary, shrouded in mystery and improbable stories, these stones...
Candice Caplan (1) & Féodor Blumentritt (1) DOI : 10.63000/G6ccV225ZoKx8 Abstract THE GEMMOLOGICAL AND MINERALOGICAL COLLECTION OF THE SWISS GEMMOLOGICAL DATA FOUNDATION (SGDF) - The Swiss Gemmological Data foundation (SGDF), based in Geneva, is an independent...
Clara Allirol-Mouton (1), Franck Notari (1) & Féodor Blumentritt (1) DOI : 10.63000/G6camV225y8E4a Abstract A REMARKABLE "OTTU" SAPPHIRE AT THE LABORATORY - The analysis of the 7.91-carats 'Ottu' sapphire developed in this article could be considered a classic...