Roberta Gellini (1) DOI : 10.63000/g5rgv125vs7ok Abstract JEWELRY OF THE INDIAN SUBCONTINENT DURING THE GREAT MUGHAL ERA - The Al-Sabath collection preserves more than 30,000 pieces offering a global vision of the Art of Islam and Pre-Islam. Founded in 1983 by Sheikh...
Shams Addioui (1) & Aurélien Delaunay (2) DOI : 10.63000/g5sav125u4ejp Abstract A DIAMOND OF MANY WONDERS - This article explores the characteristics and implications of mineral inclusions in diamonds formation. Previous studies raise important questions about the...
Lauriane Brémond (1) DOI : 10.63000/g5lbv125xp6ck Abstract THE THEFT OF THE "GRAND CONDÉ" - In October 1926, the “Grand Condé” a 9.01 carat pink diamond, exhibited in the Château de Chantilly, was robbed. Along with the diamond, the thieves grabbed a real treasure,...
Marie Chabrol (1) DOI : 10.63000/g5mc4952a0bbm Abstract This note was originally written and published in The Journal of Gemmology, 39(4), pp. 316–318 under the title “About the history of a brooch with two rare grey type IIb diamonds”, as a complement to an article...
Franck Notari (1,2), Féodor Blumentritt (1), Yolchanok Srinaka (2), Natthawut Saenkuntha (2) DOI : 10.63000/g5fnv1252tyx1 Abstract FLAME FUSION SYNTHETIC SAPPHIRES, initially near-colorless, quench-crackled, healed by heat treatment and beryllium diffused "QCBD"...
Boris Chauviré (1) & Thierry Pradat (2) DOI : 10.63000/g5bcv125u4lu3 Abstract HEATING ZIRCONS: A CULINARY EXPERIMENT ON A BATCH OF BROWN ZIRCONS - This study examines the effects of heat treatment applied to brown zircons using a simple and readily accessible...
Marine Bouvier (1), Féodor Blumentritt (2), Anselme Arsac (3) DOI : 10.63000/g5mbv125xh2ez Abstract DISCOVERY AND OBSERVATIONS OF TRAPICHE GARNETS - In gemmology, it is rare for varieties or crystallization of as-yet-unknown gems to appear of sufficient size, quality...
C’est avec beaucoup de fierté et de joie que nous vous annonçons la sortie du cinquième numéro de la revue GEMMES. Au sommaire de ce numéro, vous retrouverez les contributions de Boris Chauviré, Thierry Pradat, Éloïse Gaillou, Marie Chabrol, Franck Notari, Chloé...
DOI : 10.63000/gQ6XF78wb5 Abstract THE PEARLS OF SAINT-GINGOLPH - A short history reports on the manufacture of "Perles du Lac" in Saint-Gingolph (Switzerland), produced from 1920 until the workshops closed in 1974, then resumed in 2020. The basic materials are...