31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’s
It was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.

The second highest-grossing lot at the sale was another blue diamond, this one a 5.04-carat fancy vivid blue marquise brilliant-cut diamond, which achieved $8.1 million.
Both diamonds had a pre-sale estimate of $6.5 million to $8.5 million.
All told, Christie’s Magnificent Jewels auction totaled $49.7 million with every lot sold and blue gemstones making a particularly strong showing.
In addition to the two blue diamonds topping $8 million, a 41.29-carat Sri Lankan sapphire and diamond ring sold for $2.3 million against a high-end estimate of $800,000 after “spirited bidding” from nine telephone bidders, multiple online bidders, and in-room bidders, Christie’s said.
A Graff ring featuring a 30-carat cushion mixed-cut Sri Lankan sapphire flanked by heart-shaped diamonds achieved $1.8 million, more than double its estimate.
Additionally, a 15.49-carat Kashmir sapphire mounted in a platinum ring (pictured above) with pavé diamond accents sold for $2.1 million.
Claibourne Poindexter, Christie’s head of jewelry for the Americas, said, “Achieving 100 percent sold is a powerful testament to the appetite of today’s collectors and to the exceptional, carefully curated assemblage presented in this sale.
“From rare blue diamonds to extraordinary sapphires and rubies, the strength of demand across categories—particularly colored stones—underscores the global enthusiasm for jewels of beauty, rarity, and provenance.”
A handful of private collections also were featured in the sale.
From “The Joanna Carson Collection: A Legacy of Glamour and Giving” a sapphire and diamond ring sold for $508,000, blowing away its pre-sale estimate of $50,000 to $70,000.
Carson was a model, philanthropist, and Broadway producer who was married to “The Tonight Show” host Johnny Carson in the ‘70s and ‘80s.
She died in July 2025, and another collection of her jewelry went up for auction earlier this year in Los Angeles.
A pair of sapphire and diamond pendant earrings from the same collection garnered $457,200 against a low estimate of $100,000, and an emerald and diamond ring sold for $368,300 against a low estimate of $50,000.
A pair of David Morris ruby and diamond pendant earrings, one of three lots in “Exceptional Jewels from the Collection of Bridget Rooney Koch,” realized $1.4 million, doubling its low estimate.
Koch is the granddaughter of Art Rooney, legendary founder of the Pittsburgh Steelers.
From the “Property from the Collection of Irene Roosevelt Aitken,” a retro Van Cleef & Arpels diamond and gold bracelet was a highlight, selling above estimate for $317,500.
The bracelet once belonged to French-American opera singer Lily Pons.
A curator and patron of the arts, Aitken was the wife of John Aspinwall Roosevelt, President Franklin D. Roosevelt’s youngest son.
Following his death, she married recently widowed artist Russell Barnett Aitken. His late wife was the sculptor Annie Laurie Crawford, later Aitken, after whom the Metropolitan Museum of Art’s British Galleries are named.
Per Irene’s final wish, proceeds from the sale will benefit the Met, the Frick Collection, and the Morgan Library and Museum.
From the collection of Gay Hugo-Martinez, a prominent former federal prosecutor and civic leader in Southern California, a bow brooch from the Art Deco era sold for $241,300, tripling its low estimate of $80,000.
The top lot from the collection of American philanthropist Lorinda Payson de Roulet was an antique natural pearl and diamond brooch, which sold for $1.2 million against an estimate of $500,000 to $700,000.
See more results from the sale on Christie’s website.
The Latest

Collectibles platform Arena Club’s new Time Boxes could contain a Rolex or Patek Philippe watch.

The “Constellation Plié” collar, our Piece of the Week, features diamonds arranged in a constellation of shining stars.

Shaun Wills joined the company in 2024 and was chief financial officer of the De Beers Brands and Consumer Markets division.

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

In honor of its 20th anniversary, the jewelry brand has released a limited-edition collection of Swiss-made timepieces.


“Human Being” highlights the similarities and differences between us through five sets of jewelry that celebrate fine craftsmanship.

Richemont will continue to provide operational services for the watch brand for a period while the group prepares to integrate it.

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Enoch Platero, founder and designer behind Enoch Michael, is the first Native American jeweler to win the award.

AGS also announced the recipient of its “Women in Leadership” scholarship.

The founder of the billion-dollar jewelry and lifestyle brand will debut as a full-time “Shark” on the upcoming season of the show.

Plus, why retailers should be ready to adjust as the U.S. population may decline this year for the first time since the Great Depression.

René Lalique’s “Woman Dragonfly With Open Wings” pendant, the first piece the museum acquired, was one of the jewels taken.

Arien Gessner and Moss Makhoulian have been elevated into newly created roles.

A podcast prompted Smith to share his views on where origin fits into the natural diamond story and the viability of branded diamonds.

The association selected eight recipients for the funding program, which is in its second year.

Whether celebrating America’s 250th birthday or the USA’s World Cup run, July birthstone jewelry can double as a patriotic accessory.

Around 20 pieces of jewelry were stolen from the museum dedicated to French jeweler and glassmaker René Lalique.

The “Summer of ’96” campaign and collection celebrate the year the brand was founded for its 30th anniversary.

After eight years, Gilbertson is leaving his post at the mining company, which is currently facing a slew of operational challenges.

The new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.

The pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.

One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.

Charlotte Rose said her election is “a sign that this is an industry capable of change.”

Sponsored by Rio Grande Jewelry Supply

The American jewelry house, founded by Latvian immigrants, has been creating American flag brooches since 1917.

The artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.
























