Roskin Gem News Report

It’s not every day you come across a gemstone that brings together two of the trade’s most treasured varieties—emerald and alexandrite—in a single, faceted stone! While these two chromium-colored gems...

World Gem FoundationIf you’re looking for the latest in gemmological textbooks, the World Gem Foundation has just released the fifth edition of its Handbook of Gemmology, a comprehensive three-volume...

As you know, when the Gemological Institute of America (GIA) weighs in on a diamond’s quality, the industry pays attention—and rightfully so. GIA isn’t just a gemology school and...

Over the course of decades in the business, Richard von Sternberg has handled more than his share of remarkable gems. He’s built a long career in the colored gemstone...

Graff is turning heads in Paris this week (Paris Haute Couture Week) with a new high jewelry collection that marks the year the house was founded: 1963. These pieces...

In February of this year, we gave you several diamond discussions regarding the use of the terms "created," "lab/laboratory grown," and "synthetic." In one of those discussions, France says...

The National Association of Jewelry Appraisers (NAJA) is announcing their 64th Annual ACE©It education conference on August 9 & 10, 2025! This is a VIRTUAL event in which you can LIVE STREAM...

E. Billie Hughes, FGA, is a co-founder of Bangkok-based Lotus Gemology, a respected gemological laboratory and educational resource. A graduate of UCLA, and a Fellow of the Gemmological Association of Great...

Beginning June 1st, 2025, jadeite jade authenticity reports issued by Mason-Kay, started to look a little different. Mason-Kay, U.S. jade experts located in Colorado, have added a new sentence...

It’s not every day you come across a gemstone that brings together two of the trade’s most treasured varieties—emerald and alexandrite—in a single, faceted stone! While these two chromium-colored gems...

Over the course of decades in the business, Richard von Sternberg has handled more than his share of remarkable gems. He’s built a long career in the colored gemstone...

The Ethical Gem Suppliers collective is excited to announce its first-ever Ethical Gem Fair Seattle, taking place July 26th and 27th, 2025, open 10AM-5PM each day. Held at a...

We’ve known Gary Bowersox for decades—first when he would visit GIA in Santa Monica, sharing tales of his gem-hunting expeditions in Afghanistan, and later as he crisscrossed the U.S.,...

37-Carat Unheated Paraíba Tourmaline Emerges from Private CollectionA 37.34-carat Brazilian Paraíba tourmaline with stunning vivid blue hue—unheated, and reported to be from the original Batalha Mine—is now being offered...

The prestigious Australian Opal Awards are fast approaching, providing a platform for talented jewellers and carvers to gain national recognition for excellence in opal jewellery design and carving. With just one...

"I am pleased and proud to announce that this has been another strong auction for Grizzly," says Grizzly's chairman, Abdoulaye Ndiaye. "Our medium and high grade stones remain in...

Gemstone mining is anything but an easy task. But for one small group of hardworking insects, finding and moving gem material is simply a by-product of the work done...

“The brand made mined diamonds synonymous with love and devotion. Now the CEO decries what he calls a ‘huge con’ in lab-grown stones masquerading as precious.” —Wall Street Journal So...

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...

As you know, when the Gemological Institute of America (GIA) weighs in on a diamond’s quality, the industry pays attention—and rightfully so. GIA isn’t just a gemology school and...

Graff is turning heads in Paris this week (Paris Haute Couture Week) with a new high jewelry collection that marks the year the house was founded: 1963. These pieces...

In February of this year, we gave you several diamond discussions regarding the use of the terms "created," "lab/laboratory grown," and "synthetic." In one of those discussions, France says...

The 8 a.m. Sunday breakfast with Martin Rapaport at JCK Las Vegas is an institution—equal parts sermon, pep talk, and no-holds-barred market commentary. This year, Rap held court for...

De Beers is stepping into more visible territory—both in jewelry design and in how it tells the story of its natural diamonds. At the center of its new strategy are...

"Change reflects narrow color and clarity range of the manufactured product" In a move that feels both obvious and, at the same time, curious—not to mention, not without questions—the Gemological...

Sotheby’s June New York High Jewelry auction presents a standout selection of exceptional gemstones and important pieces from renowned collections. Highlights include a rare 9.60-carat unheated Burmese ruby from the...

Feeling the need to break away from the pack (or at least from its closest rival, Christie's) Sotheby's has changed the name of it's Magnificent flagship jewelry sale in...

As you know, when the Gemological Institute of America (GIA) weighs in on a diamond’s quality, the industry pays attention—and rightfully so. GIA isn’t just a gemology school and...

This top feature is a review of Christie's New York Magnificent Jewels Auction, on June 17th. Of course, there were diamonds—some of them truly remarkable—and we’ll showcase those in...

The first major exhibition in almost 30 years dedicated to Cartier jewels and watches opened on April 12 and is scheduled until November 16, 2025, in the Sainsbury Gallery...

Mourning jewelry was never just decorative—it served a purpose, marking the passing of a loved one with symbolism, sentiment, and often remarkable craftsmanship. Many were custom-made pieces, and the...

Christie’s Hong Kong held its highly anticipated Magnificent Jewels spring live auction on May 27 at The Henderson. The sale featured over 100 lots of exceptional and rare jewellery,...

With total sales exceeding 60 million Swiss Francs (over $70 million), Christie’s Magnificent Jewels auction at the Four Seasons Hotel des Bergues in Geneva did not disappoint. While the...

The Phillips Geneva Jewels auction, LIVE on May 12, 2025, has the potential to be an outstanding sale, featuring 144 lots of exciting jewels! We've selected a few standouts, including:...

On Friday April 15th, the Sotheby's Hong Kong Fine Jewelry Auction hammered out several beautiful and notable pieces to spotlight in the Roskin Gem News. But two headliners did not...

The March 27 Hong Kong Jewels auction at Phillips Auction House is taking place as we are finishing up the details of our report! There are some exceptional pieces...

Auctions offer a fantastic opportunity to study and appreciate jewelry from the past, whether it’s a specific era from the late 1800s or early 1900s, a remarkable center stone,...

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...

The Met Gala has never been a stage for subtlety, and this year’s red carpet was no exception. The women arrived wrapped in couture fantasies—gowns that defied gravity, trains...

Once known for playing it safe in black tie, the men of the Met Gala are now in full peacock mode—and this year, they strutted. From Coleman Domingo’s shawl...

One gentleman's white gold and diamond ring, set with four (4) near colorless round brilliant cut diamonds, total weight approximately 1.00 carats, and ten (10) irradiated blue square princess...

Lauralee shares another glamorous week of celebrities wearing fabulous jewels, so let's give you some of the highlights! We'll share who it is, what and who are they wearing,...

The British crown jewels are worth even more money than you might imagine. Here's who inherited these treasures, along with Queen Elizabeth II's private jewelry collection. By Lori IoannouMar. 27, 2025Readers...