GAA’s Certificate in Opal Studies: A Complete Education in the World of Opal
The Gemmological Association of Australia (GAA) has taken a giant leap this year with the launch of its Certificate in Opal Studies–its first comprehensive,...
ZaZa Azul: A Paraíba for the People
How a beloved 13.34-carat tourmaline went from a private treasure to the Smithsonian
WASHINGTON, D.C. – On Tuesday morning, September 16th, 2025, the Smithsonian Institution's...
Rediscovering Marcus & Co.: Macklowe Gallery Brings Masterpieces Into the Spotlight
NEW YORK – For decades, Marcus & Co. has been one of those elusive names in American jewelry history: admired by connoisseurs, but shrouded...
AGTA Helps Secure EU Tariff Relief for Loose Colored Gemstones and Pearls
The American Gem Trade Association (AGTA) announced a significant win this month: loose colored gemstones and natural pearls imported from the European Union will...
Invisible-Set Genius: Inside the Craft of Oscar Heyman
A Personal Note
Every now and then, a jeweler sends out a photo that stops you mid-scroll. Not because it's big or flashy, but because...
How AGTA is Singlehandedly Saving the International Colored Gemstone Industry*
Behind the scenes, the American Gem Trade Association (AGTA) has been fighting a quiet, complex, and costly battle in Washington, D.C. As AGTA CEO...
AGTA Announces the 2025 Spectrum & Cutting Edge Award WINNERS! … and the Roskin...
On a Personal Note:There was certainly a buzz in the room – well over 300 pieces to view, loose gems and gem-set jewelry stretched...
The 2025 Roskin Gem News Report’s Top 25
As the year comes to a close, the Roskin Gem News Report is proud to present the Top 25 most-read stories of 2025.
According to...
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...
