Roskin Gem News Report

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,...

Photomicrography: Into the Stone Images by E. Billie Hughes 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 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...

Melissa Scarani, GG (GIA), FGA, ASA, is the founder of Gemology Resources, and Houston Gemological Lab in Houston, Texas. A seasoned gemologist with over 20 years of experience in...

With the holiday season around the corner, the Gemological Institute of America (GIA) has reminded us of GIA's NextGemâ„¢, a new way for retail jewelers to train their staff...

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...

The following is a review of Eric Emms' Montana sapphire mining adventure. "Hunting Montana Sapphires"This past June, Eric Emms, well-respected British gemmologist, educator, and Hatton Garden gem trader, headed to...

"I have a new image for you which I hope you'll enjoy," says Sammantha Maclachlan.  Yes, it's another stunner! This time, we have a series of platelets in this Tanzanian sunstone,...

NEW YORK – The Edit, an exhibition of contemporary Italian jewelry design, will be held just following the JA Show, in New York City on October 29 & 30,...

Gem-A has just sent out their latest Journal of Gemmology, and, as always, it is packed full of note-worthy gem news. On the cover (seen here) is this magnificent double-strand...

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...

Now Offers Just Two Tiers — “Premium” or “Standard.” We’ve been telling you this was on the way — and now it’s official. Starting October 1, GIA will roll out...

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!...

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...

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

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...

Rago Arts' September 10, 2025 auction in New Jersey offered more than just beautiful jewels–it offered a window into jewelry history. Art Nouveau, Art Deco, and antique pieces shared...

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 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...