Roskin Gem News Report

Columbia Gem House Announces New Acquisition of Untreated Sapphires and Rubies from Tanzania Columbia Gem House (CGH), the gem cutting and wholesale supply house based in Vancouver, Washington, has announced...

Heritage Auctions’ September 29 Fall Fine Jewelry Signature® Sale is still a few weeks away, but four loose gems and a mounted diamond are already calling us to stop...

Photomicrography: Images from Within Images by Sammantha Maclachlan Sammantha Maclachlan FGA DGA FIRV MJVA AJP PJDIP CPAA - JVA Registered Valuer®️ Winner of the Gordon Ness trophy (gemmology) Fellow of the Gemmological Association...

Thanks to the Sri Lanka Gem & Jewellery Association (SLGJA), working with the National Gem & Jewellery Authority (NGJA), the Ministry of Industries, and other key departments, a Tourist...

Book #4 (and final installment) in the Diamond District Murder Mystery Series A Shocking Murder. A Glittering Lie. Meet the New Mystery That Cuts to the Core of the Jewelry...

Murfreesboro, Arkansas is the home of Crater of Diamonds State Park. Here you can pay a nominal fee, hike out into the newly plowed field, and start digging for...

Here in the U.S, colored gemstones are at the center of a very real political battle. On April 2, 2025, the U.S. government announced sweeping tariffs that threaten the viability...

Celebrating Australia’s National Gemstone Since 2000, the Australian Opal Awards have showcased the creativity and skill of jewelry designers and gemstone artisans who work with opal in all its forms....

Gemfields has sold its iconic brand Fabergé to SMG Capital for $50 million.  Fabergé, once synonymous with the pinnacle of gemstone and jewelry artistry—the crown jewel of the Russian Imperial...

Columbia Gem House Announces New Acquisition of Untreated Sapphires and Rubies from Tanzania Columbia Gem House (CGH), the gem cutting and wholesale supply house based in Vancouver, Washington, has announced...

Thanks to the Sri Lanka Gem & Jewellery Association (SLGJA), working with the National Gem & Jewellery Authority (NGJA), the Ministry of Industries, and other key departments, a Tourist...

Here in the U.S, colored gemstones are at the center of a very real political battle. On April 2, 2025, the U.S. government announced sweeping tariffs that threaten the viability...

Following numerous posts on social media, we see that Mogok—Myanmar’s legendary gem mining region—has been under attack for several weeks now. According to the latest reports, anti-junta forces captured the...

Every year, the AGTA Spectrum & Cutting Edge Awards spotlight some of the most creative minds in the gem and jewelry world. Launched back in 1984, the competition has...

With HardRock Summit 2025 just over a month away, the Denver-based gem & mineral show is gearing up for one of its most ambitious editions yet. Taking place over eleven...

"One's person's trash is another person's treasure" - Sea Glass. Treasure on the beach.It’s one of nature’s most charming recycling projects: trash turned into treasure—litter-ally . Yes, "sea glass" begins...

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...

As you are probably fully aware by now, the United States has moved to impose steep tariffs on Indian goods, escalating trade tensions and raising concerns across multiple sectors,...

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!...

Book #4 (and final installment) in the Diamond District Murder Mystery Series A Shocking Murder. A Glittering Lie. Meet the New Mystery That Cuts to the Core of the Jewelry...

Murfreesboro, Arkansas is the home of Crater of Diamonds State Park. Here you can pay a nominal fee, hike out into the newly plowed field, and start digging for...

“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...

A cache of ancient gemstones believed to have once rested above the cremated remains of the Buddha has been returned to India! The move follows international controversy over a planned...

Heritage Auctions’ September 29 Fall Fine Jewelry Signature® Sale is still a few weeks away, but four loose gems and a mounted diamond are already calling us to stop...

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 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...

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...