The 1869 Patent for “New Manufacture of Artificially Formed Mineral Carbon”
In our last newsletter, we began what appears to be an ongoing series of gem-related patents dating back more than a century, uncovered and...
Spare Parts and an Eye for Antique Diamonds: A Conversation with Michael Goldstein
Antique diamonds don’t need a trend cycle to justify their appeal. Still, it doesn’t hurt when a high-profile engagement ring brings them back into...
The 1901 Patent for the Diamond Saw: It was a Revolution
April 9, 1901 - No need to grind away the top of the Octahedron
William "Bill" D. Hoefer, Jr. GG (GIA), FGA is an educator,...
In Memoriam: George Peter “Pete” Yantzer
George Peter “Pete” YantzerNovember 10, 1948 - January 10, 2026
George Peter “Pete” Yantzer, a respected gemologist and influential figure in modern diamond grading, passed...
Diamond Club West Coast Looking Ahead to Continued Growth: A Diamond Conversation with Kalpesh Jhaveri,...
The Diamond Club West Coast Closes Out 2025 and Looks Ahead to Continued Growth
More than 600 guests gathered to celebrate industry excellence, honor standout...
The Return of Jonker VI! Diamonds Take Center Stage at Sotheby’s December Sale
On December 9, at Sotheby’s new New York home in the Breuer Building, an impressive lineup of diamonds, important colored stones, and signature house...
Who Wore What Jewels: 2025 Los Angeles County Museum of Arts, Art + Film...
Covering the 2025 LACMA Art + Film Gala, WhoWoreWhatJewels.com offered a detailed look at the remarkable jewels worn at this year’s fundraiser supporting the...
The Fall 2025 edition of GIA’s quarterly journal, Gems & Gemology (G&G)
GIA’s Fall Gems & Gemology is now available for free online. In this season’s issue, very rare and fascinating diamond properties bring out the...
GIA’s “NextGem” Reminder — In Time for the Holidays: Short, On-Demand Courses for New...
With the holiday season around the corner, the Gemological Institute of America (GIA) has reminded us of GIA's NextGemâ„¢, a new way for retail...
Photomicrography: Images from Within, by Sammantha Maclachlan
When Sammantha told us she had a new image for us, and that it was from a slice of asteriated diamond, we never envisioned...
Big Bicolor: GIA Studies Rare 37-Carat Pink-and-Colorless Rough Diamond
...and you thought you were under a lot of stress.
GABORONE, BOTSWANA – The GIA laboratory in Botswana recently examined an extraordinary 37.41-carat pink-and-colorless rough...
The Final Rio Tinto Beyond Rare™ Tender! Rare Pinks, a Red, a Dozen Fancy...
Rio Tinto has announced what will be its final Beyond Rareâ„¢ Tender–the third and last of its annual "Art Series."
This closing chapter, titled...
