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

Woodley is seen in the campaign wearing our Piece of the Week, the “Frida” collar featuring 13 pieces of hand-carved Venetian glass.

A WeBuyVintage jewelry expert uncovered how much the flea market find was actually worth.

The founder of natural colored diamond wholesaler Pancis Gems shares stories from his five decades in the industry.

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

Submissions for the milestone 25th annual Gem Awards will be accepted across three categories from now through July 31.


Valeriya Guzema and Mariana Lenha look back on the last decade and discuss the Ukrainian brand’s first U.S. store.

The diamond mine, which opened nearly 30 years ago in Canada’s Northwest Territories, is expected to shut down by mid-August.

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

Jewelry sales for the company, which owns Cartier, Van Cleef & Arpels, Vhernier, and Buccellati, rose 21 percent in the first quarter.

The graduate, Grace Barden, credited the program with helping her secure a job as a bench jeweler.

The event, scheduled for next month in New Orleans, will include dinner, a custom jewelry design contest, and education sessions.

The yet-to-be named stone is the 10th diamond weighing more than 1,000 carats to come out of Lucara’s Karowe mine.

The founder of Fords Jewelers, Berman is remembered for his love of connecting with his community.

The watch and jewelry retailer had a strong fiscal year despite what its CEO described as a “complex operating backdrop.”

The open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.

Bold color, expressive gem-setting, and sculptural form define the three chapters that make up “Stile Libero.”

The New York-based jewelry brand has expanded overseas, opening a store in London’s Mayfair district.

Rising revenue does not automatically mean a healthy business, particularly in the current economic landscape, Smith writes.

These long, fluid drop earrings are sure to catch the eye.

Alberto Perez-Elias is one of four men charged with robbing a Cape Coral, Florida, jewelry store and is the only one still at large.

Initiatives in Art and Culture is hosting its 16th annual Gold and Diamond Conference, with the theme of “Resilience.”

The designer, who once said she’d never sell lab-grown diamonds, debuted two capsule collections designed to be fun and easy to wear.

The diamond miner and marketer is undergoing another round of cost-cutting measures ahead of its sale by Anglo American.

The annual trade-only buying event is slated for Oct. 16-19 in Miami Beach, Florida.

AGTA also has announced the lineup of judges for the colored gemstone cutting and jewelry design contest’s various categories.

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.
























