C’est avec beaucoup de fierté et de joie que nous vous annonçons la sortie du huitième numéro de la revue GEMMES. Au sommaire de ce numéro, vous retrouverez les contributions de Haimanot Sisay, Vincent Pardieu, Léonard Cornuz, Victoria Jégou, Léa Rémy, Marie Chabrol...
Victoria Jegou (1) DOI : 10.63000/G8vjV226YbzlW Abstract THE TREASURES OF TANZANIA - A Journey to Discover Tanzanian Gems. Gemology allows us to better understand the materials we work with. Most of these treasures are found far from our workshops and laboratories. In...
Marie Chabrol (1), Charline Coupeau (2) DOI : 10.63000/G8mcV226rlvyX Abstract THE HABIB COLLECTION : MYTHS, REALITIES AND FUTURE According to the British press of the 1930s, Salomon Habib had one passion: that of collecting the most exceptional specimens of diamonds....
Boris Chauviré (1,2) DOI : 10.63000/G8bcV226fosnN Abstract DECOLORING YELLOWED DIIODOMETHANE Diiodomethane (CH2I2) is a high-refractive-index liquid (1.74 to 1.79) essential in gemology. Upon exposure to light, air, and heat, it decomposes by releasing iodine (I2),...
Jean-Pierre Gauthier (1), Ruben Vera (2) DOI : 10.63000/G8jpgV226Z4fVJ Abstract SWEET GEMS - Even while relaxing, particularly when enjoying an aperitif, it is possible to marvel at the scientific phenomena combining crystal growth and physical optics, observable on...
Céline Gaslain-Leduc (1) DOI : 10.63000/G8cglV226A0m7W Abstract ARCHAEOLOGY AND ARCHAEOMETRY OF AMBER IN THE ANCIENT EAST: NEW DISCOVERIES AND NEW PERSPECTIVES - Archaeological missions led since 2000s, especially in Syria (site of Qatna) and Saudi Arabia (site of...
Lauriane Brémond (1) DOI : 10.63000/G8lbV226DVhtn Abstract HUBLOT: MAGICIANS OF GOLD - In 2011, Swiss watchmaker Hublot (LVMH) announced the creation of a “scratch-proof” gold, known as “Magic Gold”. A 18k gold alloy, never seen before. Indeed, Magic Gold is composed...
Marie Chabrol (1), Aurélien Delaunay (2) DOI : 10.63000/G8mcV226pAE7F Abstract ANALYSIS OF THE RING OF MONSIGNOR PAUL DUPONT DES LOGES, BISHOP OF METZ FROM 1843 TO 1886 - In April 2026, the Laboratoire Français de Gemmologie had the opportunity to analyze the ring of...
Guillaume Soubiraa (1) DOI : 10.63000/G8gsV2265z0Jj Abstract NOTHING WILL ESCAPE ARTIFICIAL INTELLIGENCE - Artificial intelligence is not a rupture but the acceleration of a very old drive: to measure, classify, and predict. From the Antikythera mechanism to...
Léa Rémy (1) DOI : 10.63000/G8lrV226x7LVP Abstract HISTORY OF A PRECIOUS METAL: ALUMINUM JEWELRY IN THE 19TH CENTURY First produced in its pure form in 1854, aluminum emerged as an industrial material of progress while simultaneously asserting itself as a precious and...