Roskin Gem News Report

Each autumn, Gem-A receives submissions for this contest, not just from Gem-A students, alumni and members, but from colleagues and peers around the world. These images showcase the stunning...

George Peter “Pete” YantzerNovember 10, 1948 - January 10, 2026 George Peter “Pete” Yantzer, a respected gemologist and influential figure in modern diamond grading, passed away this past week following...

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 members, and mark an exciting...

We LOVE this! We received an email from Guy Borenstein, F.G.A E.G.G , Director of Gemological Research and Lab Services for Stuller Inc. in Lafayette, Louisiana. He wanted to share...

Discovered in Madagascar in the late 1990s, pezzottaite was initially mistaken for pink tourmaline or morganite (pink beryl) before laboratory testing revealed it to be something else entirely. Further...

Over the years, we’ve published numerous feature stories focused on artisanal gem mining and the people behind it. We support responsible artisanal miners who work to bring their goods...

Two of Sri Lanka’s key gem trade events were once again running back-to-back in Colombo this week, giving international buyers and dealers a concentrated look at the market from...

Over the past few years, the Roskin Gem News Report has followed Pakistan’s slow but deliberate push to modernize its gemstone sector. The newest government reports (here, here, and...

Discovered in Madagascar in the late 1990s, pezzottaite was initially mistaken for pink tourmaline or morganite (pink beryl) before laboratory testing revealed it to be something else entirely. Further...

Two of Sri Lanka’s key gem trade events were once again running back-to-back in Colombo this week, giving international buyers and dealers a concentrated look at the market from...

The American Gem Trade Association has graciously shared the professional images by Jeff Mason of Jeff Mason Photography, capturing every winning entry from the 2025 AGTA Spectrum & Cutting...

The November Sotheby's High Jewelry Geneva auction put the spotlight squarely on a 10-carat Fancy Vivid Pink cushion-shape diamond known as the Glowing Rose, mounted in yellow gold and...

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 you know what it took...

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 across three very long tables....

By Gary RoskinRoskin Gem News Report The American Gem Trade Association (AGTA) has just announced a major development in its tariff-reduction campaign: the United States and Thailand have reached a...

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 John Ford and AGTA President...

Andrew "Andy" Lucas is the President of Guild Gemology Education. A former GIA field gemologist and education manager, Lucas has spent more than four decades documenting the colored gemstone...

George Peter “Pete” YantzerNovember 10, 1948 - January 10, 2026 George Peter “Pete” Yantzer, a respected gemologist and influential figure in modern diamond grading, passed away this past week following...

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 members, and mark an exciting...

Over the years, we’ve published numerous feature stories focused on artisanal gem mining and the people behind it. We support responsible artisanal miners who work to bring their goods...

The November Sotheby's High Jewelry Geneva auction put the spotlight squarely on a 10-carat Fancy Vivid Pink cushion-shape diamond known as the Glowing Rose, mounted in yellow gold and...

This holiday season, GIA is again offering complimentary next-day Diamond Grading Report and GIA Diamond Dossier® services for submissions to the New York and Carlsbad laboratories. While supplies last,...

...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 diamond, reportedly from the Karowe...

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 Into the Light, brings together...

A week ago, the World Federation of Diamond Bourses (WFDB) posted a short promotional video on Instagram titled "Diamonds should be made by nature, not by Mike." The video introduces...

The Gemological Institute of America (GIA) has announced that their research team in Gaborone, Botswana – joined by Tom Moses, GIA Executive Vice President and Chief Research and Laboratory...

Starting October 1, 2025, GIT–the Gem and Jewelry Institute of Thailand's gem testing laboratory–will be updating the way it words its reports to better line up with CIBJO, the...

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 public eye. Taylor Swift’s...

April 9, 1901 - No need to grind away the top of the Octahedron William "Bill" D. Hoefer, Jr. GG (GIA), FGA is an educator, and an expert in appraisal...

When this medieval gold ring first appeared in English-language news coverage earlier this month, it was already a really good story. Three outlets — Archaeology Magazine, Medievalists.net, and Popular Science...

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 creations went on sale —...

Over One Month Later... What the Gem Industry Needs to Know It has now been over a month since four men, disguised as construction workers, bright orange vests and all,...

by Brecken Branstrator, GIA GG, Editor-in-Chief, GemGuide. Estate jewelry is one of the hottest categories in the market right now — offering not only a way to capture new customers,...

Christie's once again brought its Magnificent Jewels sale to Geneva this past week, following its May auction that brought in more than $72 million. This past week's sale brought...

Sotheby's Royal & Noble Jewels sale in Geneva on Wednesday, November 12, 2025, brought together treasures that showcased both exceptional craftsmanship and the deep, layered histories of the families...

NEW YORK – For decades, Marcus & Co. has been one of those elusive names in American jewelry history: admired by connoisseurs, but shrouded in mystery. That's changing, thanks...

In our last report on Heritage Auctions' September 29 Fall Fine Jewelry Signature® Sale, we focused on a few beautiful pieces of colored gemstone jewels; four loose gems, including...

We’re big fans of Lauralee’s red carpet gem parade at WhoWoreWhatJewels.com, so this week we dipped into her coverage of the 2026 Critics Choice Awards to see what the...

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 our online magazine analytics, with...

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 Los Angeles County Museum of...

The headline-grabbing engagement ring–a large oval brilliant cut diamond,has been estimated by numerous "jewelry experts" to weigh between 20 and 50 caratswith a guesstimated value of up to $5"¯million!...

Mark your calendars! On August 12, 2025, you’re invited to a free and very special conversation with one of gemology’s most respected educators and leaders. Join Dr. Cigdem Lule as she...

Diamond & Colored Gemstone-set Jewelry Marks Milestones When commemorating life's big moments, we often turn to jewelry as a lasting symbol to honor and forever remember the occasion. And the...

The 2025 Cannes Film Festival gave us plenty to talk about–on screen and on the red carpet. And when it came to jewelry, there was no shortage of standout...

The New York Liberty are a professional women's basketball team based in Brooklyn, New York. Founded in 1997, they are one of the eight original franchises of the Women's...

The sea is this year"'s leading inspiration for jewellers The endless seas are the great creative frontier in jewellery today, inspiring numerous high jewellery collections unveiled and presented this year Something"'s...

"Can you make a synthetic diamond from tequila?" In this pun-worthy moment, we take our best shot–literally. In an effort to stand out in a crowd of attention-getters at the...