【USA】Analytical Techniques in Gemology: A Historical Overview
Editor’s NoteThis special issue of *Gems & Gemology* explores the sophisticated instrumentation used in modern gemology. As the field grows…
Mineralogy
【East Pilbara】New Emerald Production from the Curlew Mine, Western Australia
Editor’s NoteThis article explores the overlooked history of Australian emeralds, detailing the challenges that have kept them from the global…
【Perth, Austr】Why Are Pink Diamonds So Rare?
Editor’s NoteThis article explores the geological mystery behind pink diamonds’ rarity, revealing the unique conditions that concentrated nearly all…
【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…
【Los Angeles,】Auction House Expects Around Five Million US Dollars: Black Diamond ‘Enigma’ to be Auctioned
Editor’s NoteThis article details the upcoming auction of “The Enigma,” a 555.55-carat black diamond that holds a Guinness World Record. Its origins…
【Ratnapura, S】Treasure Found in Merchant’s Home Becomes World’s Largest Sapphire, Value Exceeds 100 Crore
Editor’s NoteThis article reports on the recent discovery of the world’s largest natural blue sapphire in Sri Lanka, a nation long celebrated as a…
【Botswana / C】Scientists Amazed by Rare Mineral Found Inside a Diamond
Editor’s NoteThis article explores an extraordinary geological discovery where a rare mineral, not found naturally on Earth, has been discovered…
【Lucerne, Swi】About the GIA Gem Project and the Gem Collection of Dr. Edward J. Gübelin
Editor’s NoteThe pioneering work of Dr. Edward J. Gübelin established the modern scientific foundation for gemology. His vast personal collection,…
Gemstones
Editor’s NoteThis excerpt introduces the cubic crystal structure of diamond and some of its unique physical properties, such as fluorescence under UV…