The largest white diamond to come to market in the U.K. in more than a decade, the VVS1, I-color stone is expected to top $1 million.
Rio Tinto’s 2.11-Carat Red Is Its Most Valuable Diamond Ever
Optimum Diamonds in New York paid an undisclosed amount for the fancy red stone.

Melbourne, Australia--Earlier this year, Rio Tinto presented the largest red diamond it’s ever recovered from its Argyle mine in Australia.
Now, the miner has announced that the stone is the most valuable diamond in its 33-year tender history.
Optimum Diamonds LLC, a company that specializes in rare, natural fancy color diamonds, bought the 2.11-carat radiant-cut fancy red “Argyle Everglow” for an undisclosed sum. Optimum also won the tender’s fifth lot, the “Argyle Liberte,” a 0.91-carat violet diamond.
Optimum Diamonds’ CEO David Shara commented in a news release, “Optimum Diamonds is delighted to have won the Argyle Everglow. This historic red diamond is one of the diamond world’s rarest treasures and it is a privilege to be able to add it to Optimum’s collection. The Argyle Liberte is a mesmerizing violet diamond that fits perfectly with Optimum’s quest for the truly exceptional in the world of fancy colored diamonds.”
Rio Tinto said that its entire 2017 tender, comprised of 58 pink, red and violet diamonds, earned a record result for the company, proving there is high demand for rare, fancy color diamonds.
Graff Diamonds won the tender’s third lot, a 2.42-carat cushion-cut pink diamond called the “Argyle Avaline,” the largest pink diamond Rio Tinto offered this year.
Graff founder and Chairman Laurence Graff said: “We have always been passionate about pink diamonds; acquiring these incredible miracles of nature is a pleasure and an honor. We will take great care to respect the delicate beauty of Argyle Avaline as we craft a setting for this exquisite and exceptionally rare diamond.”
The Latest

Skelly shares her plans for reimagining the fine jewelry retailer she re-acquired after it faltered last year.

The collection takes inspiration from the emotional space between people, moments, and experiences.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

In 2026, the jewelry retailer is celebrating a milestone only a small percentage of family-owned businesses survive to see.


The group of jewelers held a jewelry raffle in support of the Children’s Hospital of Richmond at VCU.

The jewelry giant released preliminary results for the fourth quarter and full year on Monday, with final results slated to come next week.

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

The retailer also gave an update on its vendor partnerships.

The award-winning actress is the “epitome of modern allure,” the brand said.

The “Bloom” collection draws from the flower power movement of the 1960s and ‘70s with inlay pendants offered in eight colorways.

The unique piece was one of the custom works offered at the foundation's recent silent art auction, which garnered nearly $15,000 in total.

Bulgari named Gyllenhaal as its brand ambassador for his embodiment of artistic depth, intellectual curiosity, and warmth.

Awards were given to four students, one apprentice, and an emerging jeweler.

The top jewelry lot of the late model’s estate sale, hosted by John Moran Auctioneers, was an Oscar Heyman & Brothers for Cartier necklace.

Moses, who started at GIA’s Santa Monica lab in 1976, will leave the Gemological Institute of America in May.

Increased competition, falling lab-grown diamond and moissanite prices, and the rising cost of gold took a toll on the moissanite maker.

The earrings, our Piece of the Week, feature pink tourmalines as planets orbiting around an aquamarine center set in 18-karat rose gold.

“The Price of Freedom” campaign video for International Women’s Day confronts the quiet violence of financial control.

Also, a federal judge has ordered that companies that paid tariffs implemented under the IEEPA are entitled to refunds.

The ever-growing collection, which just expanded with the addition of Olga of Kyiv, features cameos of 12 women from history.

We asked a jewelry historian, designer, bridal director, and wedding expert what’s trending in engagement rings. Here’s what they said.

The annual event will be held in Orlando, Florida, from Sept. 14-17.

The “Outlander” star modeled for the digital cover of the magazine’s spring issue, which features a story on her relationship with jewelry.

This year’s annual congress, which will mark the confederation’s 100th anniversary, will take place this fall in Italy.

Beverly Hills was chosen as the location for the brand’s first store, designed as a “private residence for modern monarchs.”

Kering, Apple, and other retailers have reportedly temporarily closed stores in the Middle East region in light of the recent conflicts.





















