【Geneva, Swit】Largest Blue Diamond in Auction History, Once a Treasure of Indian Nobility

Editor’s NoteA historic blue diamond, potentially the most expensive ever sold at auction, will go under the hammer in Geneva next month. We examine…

【Hong Kong】World’s Largest Flawless Paraiba Tourmaline to be Auctioned at Bonhams Hong Kong

Editor’s NoteThe Kat Florence Lumina, a remarkable 181.61-carat Paraiba tourmaline, is concluding its world tour with final Asian exhibitions before…

【Tokyo, Japan】KARATZ Partners with Auction Net to Launch Gemstone Auction Service

Editor’s NoteThis article outlines KARATZ’s new “Kara-Oku” service, a partnership with Auction Net to facilitate B2B auctions of jewelry and precious…

【New York, US】Alexandrite Ring Sells for Record-Setting $1.9M at Sotheby’s

Editor’s NoteA 16.53-carat alexandrite ring has shattered auction records, selling for $1.9 million at Sotheby’s. This sale underscores the surging…

【Dubai, Unite】2.8kg Tanzanian Ruby Exhibited in Dubai

Editor’s NoteA rare glimpse of one of the world’s largest and most valuable raw rubies, the “Burj Alhamal,” was offered in Dubai ahead of its…

【New York Cit】Industry Legend Marvin Samuels Reflects on His Diamond Journey

Editor’s NoteThis excerpt from a larger interview offers a rare glimpse into the personal journey of a gem trader, highlighting the blend of family…

【Coscuez, Boy】By 2025, Colombia Could Have the World’s Largest and Highest-Quality Emerald Mine

Editor’s NoteThis article examines the remarkable turnaround of Colombia’s Coscuez emerald mine under its new ownership. From a near-defunct…

【Angola】Largest Pink Diamond in 300 Years Found: ‘Lulo Rose’ Worth Tens of Millions

Editor’s NoteAngola has unearthed the “Lulo Rose,” a remarkable 170-carat pink diamond that is the largest found in the country in three centuries….

【Bangkok, Tha】News | Gemfields to Hold First Ruby Rough Auction of 2022 This Month: Featuring Two Large-Sized Mozambique Ruby Roughs

Editor’s NoteGemfields will host its inaugural ruby auction of 2022 in Bangkok this month, featuring two exceptional Mozambique rough rubies weighing…