Blue Diamond Fetches $8.8M at Christie’s
The nearly 6-carat stone headlined the recent jewelry auction, which also featured Mica Ertegun’s jewelry.

The auction, which took place in New York on Dec. 10, was 97 percent sold by lot, achieving a total of $49.2 million.
The top lot was a 5.72-carat fancy intense blue diamond, pictured at the top of the article, that outshone its high-end pre-sale estimate, selling for $8.8 million.
Christie’s said the sale marked the second highest price achieved for a jewel at auction globally this year.
The second highest-grossing lot was a pair of spinel and diamond earrings by Harry Winston, which sold for $2.2 million against an estimate of $400,000 to $600,000, followed by a pair of diamond cluster earrings from the jeweler that sold for $1.9 million, outshining their high-end estimate of $1.5 million.
The auction also featured the sale of other colored gemstones, as well as several private collections and pieces by jewelers including Suzanne Belperron, Cartier, Tiffany & Co., Van Cleef & Arpels, and more.
A collection of jewelry from tastemaker and philanthropist Mica Ertegun, who died last December, garnered $2.6 million, nearly six times the grouping’s low-end estimate of $461,000.
Each of the 16 lots sold.
Born Ioana Maria “Mica” Banu in 1926 to a prominent Romanian family, she settled in New York around the ‘60s. With her friend and former Vogue editor Chessy Rayner, she founded the successful interior design business, MAC II.
Her clients included Keith Richards, Henry Kissinger, Bill Blass, and Saks Fifth Avenue.
“Mica Ertegun’s taste in jewelry was the most refined, supremely cultivated, expertly chosen, and worn with exquisite restraint,” Stellene Volandes, editor in chief of Town & Country magazine, told the New York Times.
Prospective buyers were excited about the offering, the auction house said, noting lively and enthusiastic bidding coming globally from clients in the room, on the phones, and online.
The star of Ertegun’s collection, a Cartier Art Deco multi-gem and diamond brooch, pictured above, sold for $1.4 million following “a fierce bidding battle,” according to the auction house.
It was estimated to achieve $100,000 to $150,000.
Christie’s will continue with a series of auctions throughout December featuring Ertegun’s jewelry, design items, art, and more.
The auction also featured “Jewels as Art: Magnificent Jewels from a Private Collection,” a grouping of jewelry as wearable art curated by a collector with an eye for art and design, Christie’s said.
It achieved $9.2 million.
The highlight of this collection was one of the 15 Suzanne Belperron pieces on offer—the diamond “Tube” bracelet, which sold for $945,000 against an estimate of $400,000 to $600,000.
Another standout was a Bulgari multi-gem and diamond “Kilim” bracelet, which was estimated to achieve up to $150,000 and sold for $567,000.
The sale concluded with lots from the offering “Treasures of Love: Exceptional Jewels from a Private Collection,” which totaled $6.7 million.
The top lot of the group was a Van Cleef & Arpels “Ruban Mysterieux” necklace, which garnered $1.4 million.
It was estimated to sell for up to $800,000.
"Today's sale in New York was a testament to the vibrant market for jewelry of the highest caliber with singular provenance. We were particularly pleased with the result of the top lot - a fantastic fancy intense blue diamond ring that sold for $8.8 million,” said Rahul Kadakia, Christie's international head of jewelry.
“We also were deeply honored to sell jewels from several of the world's most esteemed private collectors, including Mica Ertegun. Offering this selection of jewelry hailing from the collection [of] Mica Ertegun was a tribute to her brilliant eye, and we are thrilled by the exceptional outcome."
The Latest

Two Saks Fifth Avenue locations, one in Florida and one in California, and one Neiman Marcus store are off the chopping block.

West, who started in the art department at the Leading Jewelers Guild in 1979, is remembered for his patience, kindness, and dedication.

In the “Tesoro” version of the ring, our Piece of the Week, each side of the gold hexagonal nugget has a unique colored gemstone design.

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

Cohen discusses the evolution of Citizen’s light-powered technology, the brand’s cross-generational appeal, and tariffs.


“Essentially Human: On Sales and Salespeople" reveals the underlying human traits and behaviors of the most successful sales professionals.

The collection features symbols of love, luck, and light, based on the story of Queen Cassandane and Cyrus the Great of Persia.

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

It’s the third scholarship to be launched as part of the partnership to help appraisers advance their professional credentials.

The deadline for entries in the jewelry design competition has been extended to April 3.

After 28 years with JCK, the veteran industry journalist is launching his own publication on Substack called The Jewelry Wire.

Wiley said the project will give scientists worldwide access to the American Museum of Natural’s History renowned mineral collection.

The “Flower Puff” collection looks to beaded flower friendship bracelets from childhood, turning the silhouette into nostalgic fine jewelry.

Set for April 2, the webinar will discuss how the jewelry industry can address the workforce gap.

Bayer, founder of Lisa Bayer Designs, is remembered as “a bright light in every room.”

The next three editions of AGTA GemFair Tucson will feature a five-day show that includes Sunday.

Former Sotheby’s executive Tom Heap has taken on the London-based role.

The group of women allegedly robbed two Catbird stores and one Gorjana location on the afternoon of March 9.

Movado CEO Efraim Grinberg noted continued strength in the fashion watch and accessible luxury segments in the U.S.

After celebrating 25 years in 2025, the campaign marks a new chapter for the jewelry brand with the message that “Identity Creates Value.”

Couture and Time to Watches announced the watch brands, from big names to independents, attendees will see at the show.

Plus, why Saks Global’s bankruptcy may have given Bloomingdale’s an edge.

Costume designer Kate Hawley wore three archival Tiffany & Co. brooches, our Pieces of the Week, while accepting her first Oscar.

The jewelry retailer announced changes to its store network and brand portfolio during its fourth-quarter earnings call.

From a weaker labor market to inflation, NRF Chief Economist Mark Mathews gave insight on what retailers can expect this year.

The historic stone, which sold at Elmwood’s in London, is the largest white diamond to be offered on the U.K. market in more than a decade.

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach in Las Vegas on May 31.






















