Iridis to Hold Rough Tourmaline Auction
The mining company said the event is the first of its kind in the world.

It’s scheduled for Nov. 21-24 in Bangkok.
Billed as the world’s first auction of rough tourmalines, the inaugural event will feature “the largest collection” of exceptional pink, green, and bi-color Zambian tourmaline.
The miner also said the auction will utilize the first tourmaline grading system for prospective buyers.
“We are excited to be showcasing some of the world’s finest rough tourmaline gemstones in Bangkok this November. This forthcoming auction is the culmination of 18 months of production from our Zambia operations, which will see these stunning gemstones in a first-of-its-kind grading system with 100 percent traceability,” said Iridis CEO Cyrille Djankoff.
Djankoff and Stephane Foucaud co-founded Iridis, a name derived from the Latin word for rainbow, iris.
In 2017, the company became the major shareholder in the Jagoda mine. It holds an initial license valid until November 2023, with the option to extend the license for 10 years.
When Jagoda “came on stream” in 1997, Iridis said, it was initially known for its exceptional pink tourmaline, but surveys by the Gemological Institute of America and others said it may become “one of the most important sources of tourmaline the world has ever known.”
The miner seeks to “redefine the gemstone industry through responsibly and reliably bringing tourmaline to the global market.”
The Zambian mine is the first colored gemstone mine to be “actively participating” in the standards laid out by The Initiative for Responsible Mining Assurance (IRMA), according to Iridis.
For information on attending the auction, contact kathy@bonasgroup.com or visit Iridis’ website.
The Latest

Sponsored by Stratus Estate Buyers

Cloud, who will officially join Blue Nile on Monday, spent 26 years at Tiffany & Co. and founded jewelry brand Roseate.

Garcia will take over from the company’s current CFO, Anders Boyer, who is retiring at the end of November.

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

Etsy CEO Kruti Patel Goyal explained why the company is letting go more than 200 employees as its performance improves.


The “Star Gazer” pendant, our Piece of the Week, is Syna’s tribute to curiosity and the discovery of something new.

Museum officials are looking to the public to help cover the “exceptional” costs involved in recovering from the July 5 smash-and-grab.

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

The overhaul includes enhanced employee safety training and trendy earring styles, including lab-grown diamond studs.

The retailer said it had its biggest Mother’s Day ever, with strong demand for higher-priced jewelry.

“Handwork: Handcrafted Objects that Made America” features historic and contemporary works, including a Diné squash blossom necklace.

The Armenian Jewelers Association’s East Coast chapter has also elected its 2026–2027 board of directors.

Onyx Partners has submitted a second offer to buy the department stores after its first offer fell through last year.

Solomon Brothers Jewelers has partnered with local cocktail bar Roaring Social on a new martini garnished with a tennis necklace.

Benjamin Siegel, son of President and CEO Hank Siegel, started working for the family business this week.

The new space features a modern design that blends Bulgari’s Roman heritage with San Diego’s coastal spirit.

Four men were charged in connection with the break-in and accused of stealing $365,000 in cash, jewelry, and designer goods.

André Branch has more than 25 years of experience with various brands, most recently serving as CEO of Ariana Grande’s cosmetics company.

New York-based atelier Gemlok is best known for creating the innovative “bridge” setting that became popular in the bridal market.

Santana Now's debut collection, “Unidad,” features symbolic motifs as well as pieces of wood from the Woodstock stage.

The 50-year-old man pleaded guilty earlier this year to robbing two jewelry stores and a pawn shop of more than $700,000 in merchandise.

The watch’s dial features an original design by Marvel comics illustrator Adam Kubert.

The new collection of lab-grown diamond and colored gemstone jewelry provides a “fresh perspective” on the category, Chatham said.

While some August babies are team peridot, the month's time-honored birthstone, others are team spinel, the newer alternative.

Edina Kiss’ “Popsicle” pendant and Karina Choudhrie’s “Ice Cream” charm satisfy that summer craving for a sweet piece of jewelry.

The massive billboard has been in the same spot on the department store’s Herald Square flagship store for decades.

David Bonaparte, along with Tim Haake and Ronnie VanderLinden, continue to lobby for tariff exemptions for diamonds, gemstones, and pearls.
























