Historic Emeralds and their Geographic Origin: A Retrospective Study
Marie-Laure Cassius-Duranton, Vincent Pardieu, Stefanos Karampelas
Modern Cultivation of Freshwater Pearls in China: Advances in Materials, Technique
This presentation explores the modern advancements in freshwater pearl cultivation in China, focusin
Identification of melee size synthetic coloured diamond for jewellery
Synthesis methods to produce large and high-quality dia- mond for jewellery have been improved over
Gemological Characteristics of New Transparent Brown Sapphire
A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,