A Classification Scheme of Natural Radiation Stain Morphology and Texture on Diamond by Taryn Linzmeyer, Roy Bassoo, Sally Eaton-Magaña, Bernd Zechmann, Nathan D. Renfro, and John I. Koivula
Diverse Range of Organic-Rich Cores in South Sea Non-Bead Cultured “Keshi” Pearls by Nishka Vaz, Abeer Al-Alawi, and Anakul Belanke
Records from a Luxurious Past: Gem Inventory of a Seventeenth-Century Armenian Merchant by Sona Tajiryan