Roskin Gem News Report

Connect with industry leaders and attend the Responsible Gem Boutique and the Chicago Responsible Jewelry Conference, taking place October 22–24, 2026. Enjoy shopping at the Boutique on October 22, then...

Press Release The Singapore International Jewellery Expo (SIJE) 2026, returns to Marina Bay Sands Singapore from 9 to 12 July 2026 with its largest and most ambitious edition yet. Spanning three...

Designing American Jewelry by Ellie Thompson An inspirational book about a jeweler's journey that helped shape her designs. The Hardness of Emerald by Ron Ringsrud Ron Ringsrud's life journey in Colombia for...

The Gem-A Conference will welcome renowned speakers, illustrious sponsors, and internationally revered gemmologists to The Leonardo Royal Hotel London St Paul’s for a weekend of insightful talks, continuing professional...

TRADE ALERTSSEF - the Swiss Gemmological Institute Based on a number of recent cases, the Swiss Gemmological Institute SSEF is issuing a trade alert concerning a fraudulent practice that has...

Christie's Hong Kong Magnificent Jewels auction brought together many of the ingredients collectors typically chase: a Fancy Vivid Pink diamond by Bvlgari, a nearly 14-carat Kashmir sapphire, exceptional natural...

Taking a short break from the traditional gem-set jewels, we took a look through Sotheby's Geneva Fine Watches auction catalogue, held May 7th - 9th, at the Mandarin Oriental....

For decades, gemstone pricing guides have operated on a simple assumption... If enough material exists in the marketplace, researchers can observe transactions, compare qualities, and establish pricing across a...

TRADE ALERTSSEF - the Swiss Gemmological Laboratory SSEF Issues Trade Alert After Identifying Re-Filled EmeraldsAccompanied by Earlier "No or Minor Enhancement" Reports Picture this: An emerald with oil- or resin-filled fissures is...

This time, Billie Hughes gives us something rarely seen: a before-and-after-and-after-again look at what happens to an inclusion during heat treatment. As gemologists, we are always looking for clues of...

Designing American Jewelry by Ellie Thompson An inspirational book about a jeweler's journey that helped shape her designs. The Hardness of Emerald by Ron Ringsrud Ron Ringsrud's life journey in Colombia for...

TRADE ALERTSSEF - the Swiss Gemmological Institute Based on a number of recent cases, the Swiss Gemmological Institute SSEF is issuing a trade alert concerning a fraudulent practice that has...

Elvis “Buzz” Gray seemed to have a way of being in the right place at the right time. His son, Mike Gray, says it more personally... “My dad was...

by Emily “D.D.” FrontiereContributing Editorfor the Roskin Gem News Report The Monterey Bay Jade Festival in mid-June has quickly become a must-see event in the Americas for jade collectors, carvers,...

We hope you are enjoying the outstanding inclusion images that Billie Hughes has been sharing with us. Today’s image takes us inside a natural spinel — or, as Hughes...

As we expect from a high-end watch show, watches at Watches & Wonders Geneva tend to focus on complicated mechanics, precious metals, and diamonds. But this year, one watch caught...

Over the years, we’ve noticed the pronunciation of “Paraíba” slowly drifting — from four syllables down to three, often heard as pah-REE-ba. But Paraíba is a place — Paraíba, a...

For decades, diamond grading reports have documented a stone's color, clarity, carat weight, and proportions. Yet anyone who has spent time comparing diamonds knows that two stones with identical...

The Accredited Gemologists Association (AGA) hosts a dedicated virtual event focused on the diamond market and gemology. The conference—"Colors of the Diamond Market"—provides insights into diamond valuation, natural and synthetic...

Fashionably late has a whole new meaning. For more than a century, jewelers have been pulling off one of high jewelry's most elegant tricks: hiding the watch. Long before smartphones...

Sotheby’s May 12th sale of High Jewelry in Geneva presented the usual wide range of rare gemstones and collectible signed jewels. Headlining the sale was this 6.03-carat Fancy Vivid...

For years, the jewelry industry has wrestled with whether synthetic/"laboratory-grown" diamonds would replace natural diamonds, stand alongside them, or eventually create their own category. If the conversations coming out of...

For centuries, the famous Hortensia Diamond has existed as an historical object behind museum glass at the Louvre — a softly colored pink diamond tied to French royal history,...

They did it again. The Letšeng Diamond Mine in Lesotho has recovered two more 100+ carat diamonds — a 100.71-carat Type I faint yellow diamond and a 191.84-carat Type IIa...

Argyle Pink Diamonds™ and West Australian Ballet are delighted to announceIsabella Triscari as their Rare Gem for 2026.The second year of a unique program, the Rare Gems partnership supportsthe talented dancers from the...

At first glance, the new D Standard Collection from Brij looks like another ultra-luxury jewelry launch headed for Las Vegas. 18-karat gold. Flexible diamond jewelry. High-end private-label programs. The usual...

We’ve been following a number of mining reports over the past few weeks… and started putting them together into a broader, global picture for you. And it’s not a pretty...

Christie's Hong Kong Magnificent Jewels auction brought together many of the ingredients collectors typically chase: a Fancy Vivid Pink diamond by Bvlgari, a nearly 14-carat Kashmir sapphire, exceptional natural...

Taking a short break from the traditional gem-set jewels, we took a look through Sotheby's Geneva Fine Watches auction catalogue, held May 7th - 9th, at the Mandarin Oriental....

Sotheby’s May 12th sale of High Jewelry in Geneva presented the usual wide range of rare gemstones and collectible signed jewels. Headlining the sale was this 6.03-carat Fancy Vivid...

For centuries, the famous Hortensia Diamond has existed as an historical object behind museum glass at the Louvre — a softly colored pink diamond tied to French royal history,...

The numbers reached from Christie’s Geneva auction during Luxury Week were impressive to say the least. Beyond the headline-grabbing sale of “The Ocean Dream” — the amazing 5.50-carat Fancy...

The Heritage May 4th Spring Signature Fine Jewelry Auction was the familiar Heritage marathon—an all-day affair packed with everything from important signed jewels to fun and affordable estate pieces. There...

Session 2, Sarah Caldwell Steele The Death of “Organic”: Why Gemology Needs a Scientific RevolutionAccredited Gemologists Association by Emily “D.D.” Frontierefor the Roskin Gem News Report “Revolution” may seem like a...

By Anthony DeMarcoSenior Contributor, Forbes When the Natural History Museum of Los Angeles County renames its Gem and Mineral Hall after Robert Procop, it reflects more than a distinguished Los...

Heritage presents the May 4th Spring Signature Fine Jewelry Auction, with all the expected heavyweights—colored diamonds, Kashmir sapphires, Burmese rubies, Cartier, Van Cleef & Arpels, and Tiffany & Co....

April 23, 2026Diamond, Ruby, Emerald and Sapphire .... Sotheby’s Hong Kong takes the stage this week, Thursday, April 23, with a High Jewelry auction built around the jewelry houses and...

Argyle Pink Diamonds™ and West Australian Ballet are delighted to announceIsabella Triscari as their Rare Gem for 2026.The second year of a unique program, the Rare Gems partnership supportsthe talented dancers from the...

While Geneva auction houses continue to showcase extraordinary natural diamonds, Kashmir sapphires, Burmese rubies, and important signed high jewelry, another upcoming auction reminds us that provenance itself can become...

The 2026 Met Gala turned into a full-scale showcase of men’s high jewelry moments. Black tuxedos became the perfect backdrop for seriously jaw-dropping pieces.  Among the standout jewels was Elsa...

The Jewels, The Tributes, The Legacy April 21, 2026, marked what would have been the 100th birthday of Queen Elizabeth II, one of the most recognized figures of the modern...

The Los Angeles Dodgers—a Major League Baseball team based in Los Angeles, California—celebrate their 2025 World Series victory with a ring by Jostens featuring natural diamonds, blue sapphires, and...

When Hollywood’s awards season rolls out, most of the attention goes to the gowns. But if you’re in the jewelry business, that’s not where you’re looking. You’re looking at...

The BAFTA Awards — presented by the British Academy of Film and Television Arts — returned with what has become a predictable constant: diamonds. And there were LOTS of...

In our world, when someone says gold, silver, or platinum, we instinctively ask:What karat? What fineness? What weight? In another world — the Olympic world — when they say gold,...

Who Wore What JewelsJanuary 14, 2026 by Lauralee Best Jewelry Moments from the Men at the 2026 Golden Globes At the 2026 Golden Globes, the most interesting jewelry moments weren’t limited to the...

Who Wore What JewelsJanuary 14, 2026 by Lauralee Best Jewelry Moments from the Women at the 2026 Golden Globes The 2026 Golden Globes Red Carpet delivered no shortage of sparkle, but the most...