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

Retailers and manufacturers headed to the Capitol this week to discuss tariff exemptions for diamonds and gemstones, among other issues.

Our Piece of the Week is a pair of drop earrings from the “Sway” collection featuring Nanis’ first use of mirror-polished gold.

SynthDetect 2 can scan a full tray in less than five minutes, De Beers said, making it six times faster than its predecessors.

Experience gemstones with greater precision and comfort than ever before.

The bill has a provision that allows the president to raise tariffs on countries that import Russian oil and gas to as much as 100 percent.


The American Gem Society presented the annual award to a former president of its board.

The “Chrysalis” capsule centers butterfly motifs representing growth, transformation, and the unfolding of who you are.

Submit your pieces for a chance to win in this year's competition.

Jewelers of Louisiana presented Patton, the third-generation president of Pattons Fine Jewelry, with the award at its annual convention.

Two special guests join the podcast to commemorate the 10th anniversary of the designer advocate, mentor, and author’s untimely passing.

McCormack brings sea-inspired motifs from her “Beaches” collection to L’Objet’s tableware, vanity pieces, and first-ever cutlery set.

Nine New Jersey jewelers have been victims of smash-and-grab robberies this year, prompting JSA to circulate a list of recommendations.

Marlin “Brian” Hood, who has been with the store for 20 years, will succeed Ricky Bromberg, who died earlier this month.

The new bridal catalog features the latest jewelry collections and designs from timeless classics to modern silhouettes.

Stars wore either a necklace or earrings at 78th Primetime Emmy Awards but rarely both, Natalie Francisco notes.

Jennifer Shaheen compares this new era of AI-powered SEO to a video game: your website must clear one level before advancing to the next.

The program highlights “Made in Italy” fine jewelry with digital merchandising, sales education, and local marketing support.

Hilson, Signet’s chief operating and financial officer, discussed Q2, resurgent natural diamond demand, and why Blue Nile is a standout.

The stores that have a great December are the ones that made good decisions in August, September, and October, Sherry Smith writes.

The 22.09-carat fancy yellow “Pragnell Kimberley Sunshine Diamond” is part of the fall jewelry sale at Heritage Auctions.

“Adornos: Jewelry, Memory & What We Pass Down” honors the jewelry’s importance to New York City’s Latine communities.

The company’s managing director of sales said the results demonstrate “continued strong demand for commercial-quality emeralds.”

The nonprofit awarded a grant to the Gift of Sight initiative spearheaded by South African musician Black Coffee.

The Latine-owned New York jeweler is marking two milestones this year: its 50th anniversary and the 25th anniversary of the 9/11 attacks.

The jewelry retail broadcast network has sponsored a new space for Make-A-Wish East Tennessee on its campus in Knoxville.

The recipients were recognized at the 24 Karat Club of the Southeastern United States’ annual banquet.

Keith Rolfe, CFO and COO of Lagos, is now at the jewelry brand’s helm while Steven takes on the role of executive chairman.

























