Sotheby’s To Auction ‘Exceptional’ Collection of JAR, Suzanne Belperron Jewels
The single-owner sale will headline Sotheby's inaugural jewelry auction at the Breuer building, its new global headquarters, this December.

“A Legacy of Elegance: Jewels from an Exceptional Collection” comprises more than 60 pieces spanning the 1930s to the 1990s, with a focus on Parisian jewelry houses, such as Cartier, Boivin, and Boucheron, offering a “rare lens” on Paris, said Sotheby’s.
It is expected to garner more than $8 million total.
The collection was assembled over the course of many decades, the auction house said.
At the heart of the collection are jewels by modern-era visionary designers Joel Arthur Rosenthal (JAR) and Suzanne Belperron.
These artists changed the course of jewelry design over the last century “through extraordinary imagination, technical mastery, and a renegade’s confidence,” according to Catharine Becket, Sotheby’s global head of high jewelry.
“Though created decades apart, their jewels were—and in the case of Mr. Rosenthal, continue to be—conceived for those who appreciate the unconventional, the unexpected and, in many cases, a flourish of eccentricity.”
Becket continued, “This is a collector who, in possession of great scholarship and passion, has focused on the very best examples in all art forms, prioritizing rarity, originality, and superlative artistry.”
A highlight of the sale is a colored gemstone and diamond necklace by Suzanne Belperron. It is estimated to sell for $250,000 to $350,000.
Made with pastel pink topaz and cool blue aquamarine, as well as morganite and diamond, the piece exemplifies the unprecedented combinations of stones and minerals and exceptional color contrasts the designer was known to favor, said the auction house.
A variation of the designer’s bib necklaces, it features faceted gemstones and “a delicate fluidity of construction.”
Belperron’s hallmark bold, sculptural style and signature aesthetic is seen in another piece on offer—a chalcedony and amethyst cuff, which is estimated to sell for $80,000 to $120,000.
Belperron was one of the few female jewelry designers and makers of her time, said Sotheby’s, creating jewelry from the 1930s to the mid‐1970s.
She never operated a storefront, relying on word-of-mouth among her clientele, which included Elsa Schiaparelli, Diana Vreeland, and the Duchess of Windsor, as well as other royal families, financial magnates, Hollywood stars, and other members of the intellectual and artistic elite.
The designer never signed her jewels, known for her declaration, “My style is my signature.”
Based in Paris, she began her career at René Boivin in 1919, staying until 1932.
A Boivin sapphire and diamond brooch on offer shows “the clear influence” of Belperron, the auction house said.
The piece, estimated to sell for $40,000 to $60,000, once belonged to Daisy Fellowes (1890-1962), a French socialite and heiress to the Singer sewing fortune.
The collection also features more than 10 jewels by JAR, one of the most powerful and revered names in jewelry design today, according to Sotheby’s.
A pair of diamond earclips, estimated to sell for $500,000 to $700,000, leads the ensemble.
These earclips, as well as several of the other JAR pieces on offer, were displayed at the artist’s 2002 exhibition at London’s Somerset House.
A New York City-born designer working in Paris, Rosenthal has become “the byword for the ultimate in near-untouchable artistry in gems and precious metals,” the auction house said.
Since beginning to create his own designs in the 1980s, the designer has introduced a depth of meaning, cultural layers, beauty and poetry, and poignancy that Sotheby’s said had been missing in precious jewelry for decades.
His designs are known to be otherworldly, often surrealist, regarded as wearable works of art, and he produces fewer than 100 pieces a year.
Rosenthal is the first living jeweler to have a retrospective at The Metropolitan Museum of Art.
The museum described him as a “contemporary artist of gems,” known for his painterly selection of gem-color, mixing stones to create subtle gradations or vibrantly arresting contrasts, Sotheby’s said.
His three “Wild Rose” brooches on offer, estimated to achieve up to $1.2 million total, are designed as blooms set with colored stones centered by natural pearls.
Sotheby’s noted that Rosenthal may be credited with igniting a “pavé-set revolution,” a technique now considered foundational to jewelry design of the 21st century.
“A Legacy of Elegance” will also feature a ruby and diamond laurel leaf necklace by Boucheron that passed through the collections of two notable American women who the auction house said “conquered international high society.”
Set with approximately 40 carats of rubies and 65 carats of old-cut diamonds, it is estimated to achieve $1 million to $2 million.
It once belonged to Mary Louise Hungerford Mackay (1843-1928), wife to John Mackay, an industrialist who rose to wealth during the Gilded Age, amassing his fortune via silver mining and the telegraph and railway industries.
The couple, snubbed by New York society, left for Paris, where they hosted lavish parties, at which the hostess would display her jewels, many of which were from Boucheron.
The necklace was later acquired by Countess Mona Bismark (1897-1983), a figure who achieved her social status through a series of noteworthy marriages and was widely regarded for her beauty and elegance.
The piece appeared in a 1986 Sotheby’s auction of the Countess’ jewelry, but it bore no signature and was therefore offered without an attribution. It was identified three decades later by Vincent Meylan, author of the 2011 book “Boucheron: the Secret Archives,” who placed the necklace on the cover.
Another highlight of the collection is a Cartier invisibly-set ruby and diamond bracelet.
It is estimated to sell for $300,000 to $500,000.
The style is reminiscent of Cartier rival Van Cleef & Arpels' designs. Though both firms applied for a patent for the technique in 1933, Cartier eventually did away with the method.
The bracelet bears the mark of Rubel Frères, a Parisian workshop known for its Art Deco creations for Van Cleef & Arpels.
“This collection stands out for its compelling variety of characteristics—rarity, distinguished authorship, impeccable provenance, and above all, iconic design. It is a true celebration of connoisseurship, showcasing the finest jewels and artisans from the late 19th century through to the present day,” said Quig Bruning, Sotheby’s head of jewels, Americas and EMEA.
“Assembled with both passion and joy, these treasures were clearly deeply cherished and lovingly worn by their owner. Today, this exceptional collection takes its place alongside some of Sotheby’s most celebrated jewelry legacies in recent memory, including those of Mrs. Paul (Bunny) Mellon, Evelyn and Estée Lauder, Brooke Astor and Jayne Wrightsman.”
The sale will headline Sotheby’s inaugural luxury auctions at its new global headquarters in the historic Breuer building on Madison Avenue in New York.
Set for Dec. 8, it will be the first evening jewelry auction at Sotheby’s New York in more than a decade and the first to be held at the Breuer building.
Select highlights will go on a worldwide tour prior to an exhibition at the Breuer building beginning Dec. 5.
For more about the sale and the full exhibition calendar, visit Sotheby’s website.
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.






















