Pink-orange gem quality euclase from Bahia, Brazil
Lætitia Gilles-Guéry
Bertrandite in Emeralds
Over the past few years we have been seeing more and more lower quality stones in the lab. The reaso
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