【Sri Lanka】Color Change Sapphire Sri Lanka: 2025 Rare Gem Value Trends
Editor’s NoteThis article explores the rising value and global demand for color change sapphires, with prices from key sources like Sri Lanka…
Corundum
【韩国】The Color Humans Instinctively Long For: Blue Sapphire
Editor’s NoteThis article explores the profound connection between autumn’s signature skies and the artistry they inspire, from the canvases of…
Visualized: Over 100 Minerals and Gems Ranked by Hardness
Editor’s NoteThis article explains the Mohs hardness scale, a fundamental geological tool developed in 1812 to rank minerals by scratch resistance….
【Matepwende, 】New Production of Sapphire from Matepwende, Tanzania
Editor’s NoteThis article details the initial discovery and acquisition of sapphires from a new rush near Matepwende, Tanzania, in early 2024. It is…
【Weasua, Libe】Update on Liberian Ruby
Editor’s NoteThis article examines a new source of rubies from Liberia, building on earlier reports. The samples discussed were provided by the NGO…
Unusual Solid Inclusions in Flame-Fusion Ruby
Editor’s NoteThis article details the gemological analysis of a synthetic ruby, focusing on unusual dark red inclusions observed under magnification….
【Quebec, Cana】Hidden Treasures: The Precious and Semi-Precious Stones of Quebec
Editor’s NoteThis article explores the fascinating geological and historical origins behind the phrase “As false as a Canadian diamond,” tracing it…
【Horana, Sri 】World’s Largest Sapphire Weighs 310 Kilograms
Editor’s NoteThis article describes the unveiling in Sri Lanka of what is believed to be the world’s largest natural blue sapphire, a 310-kilogram…