Pink and purple stones were popular in the AGTA’s design competition this year, as were cameos and ocean themes.
Two Senior Jewelry Executives Step Down at Sotheby’s
David Bennett and Daniela Mascetti have presided over important and historical jewelry auctions and written books together during their tenure.

New York—Two leaders of Sotheby’s jewelry department have stepped down.
David Bennett and Daniela Mascetti have departed after four decades with the auction house.
Bennett, its chief auctioneer and worldwide jewelry chairman, retired this summer after 42 years.
Gary Schuler, former jewelry chairman for the Americas, will step in as worldwide chairman for the jewelry division, Sotheby’s told Rapaport.
“While David has officially decided to retire, he assures us his interest in jewelry will never wane, so he will almost certainly remain a presence in our world,” a Sotheby’s spokesperson said in a statement to National Jeweler.
Bennett was appointed to the newly created role of worldwide chairman of Sotheby’s international jewelry division in 2015 but has been at the auction block since 1978, overseeing several record-breaking sales.
Dubbed the “100-Carat Man,” he has presided over the sales of seven 100-carat diamonds during his tenure.
At a recent auction of royal jewels from the Bourbon-Parma family, he oversaw a sale that set a record for royal and antique jewels at $53.1 million and for a natural pearl at $36.2 million.
He was also auctioneering at the sale of three of the five most expensive jewels in auction history, according to his Sotheby’s biography, including the CTF Pink Star, a 59.60-carat fancy vivid pink internally flawless diamond, and the Blue Moon of Josephine, a 12.03-carat fancy vivid blue diamond.
Bennett was at the helm when a world record was set for jewelry sales in May 2016, garnering $175.1 million for Sotheby’s sale of Magnificent Jewels and Noble Jewels in Geneva.
RELATED CONTENT: Up, Up, and Away: The Rise in Natural Colored Diamond PricesThe record price for a ruby and for a ruby per carat with the $30.3 million sale of 25.59-carat “Sunrise Ruby,” and the record for a jewel by Cartier, were also set under Bennett.
Bennett has built a reputation as a trusted source in precious stones and jewelry.
Art + Auction named him one of the top 10 most powerful people in the art world in a December 2013 issue. He was considered one of the top 50 most influential people in Switzerland by magazine Bilan.
He is a co-author of “Celebrating Jewellery” and reference book “Understanding Jewelry,” both written with Daniela Mascetti, Sotheby’s senior director and chairman of jewelry for Europe.
Mascetti will also be retiring after 40 years with the auction house.
She joined the company in 1980, as per her Sotheby’s biography,
She is a noted scholar in the history of jewelry, lending her research expertise to the sales of jewelry from the Bourbon-Parma family, including a pendant belonging to Queen Marie Antoinette, the Jewels of the Duchess of Windsor and the collections of Thurn und Taxis, Elton John and Gina Lollobrigida.
In retirement, she will dedicate more time to her scholarly pursuits, a Sotheby’s spokesperson said.
Mascetti graduated with a degree in archaeology from the University of Milan, learning to date, research, and value historical jewels.
She helped research jewelry for the “Castellani & Giuliano: The Judith H. Siegel Collection” in New York, which Sotheby’s described as a “landmark event” that “reinvigorated the interest in and demand for revivalist jewels.”
Mascetti is also the author of “Bulgari, The Necklace from Antiquity to the Present and Earrings from Antiquity to the Present,” alongside jewelry historian Amanda Triossi.
“Having been with us for over 40 years, David Bennett and Daniela Mascetti have decided it’s time for a new chapter,” Sotheby’s said. “We will miss them both and wish them much happiness.”
The Latest

All proceeds from the G. St x Jewel Boxing raffle will go to City Harvest, which works to end hunger in New York City.

Courtney Cornell is part of the third generation to lead the Rochester, New York-based jeweler.

From educational programs, advocacy, and recent MJSA affiliation, Jewelers of America drives progress that elevates businesses of all sizes.

De Beers also announced more changes in its upper ranks ahead of parent company Anglo American’s pending sale of the company.


Former Signet CEO Mark Light will remain president of Shinola until a replacement for Ulrich Wohn is found.

The company focused on marketing in the third quarter and introduced two new charm collections, “Pandora Talisman” and “Pandora Minis.”

The jewelry retailer raised its full-year guidance, with CFO Jeff Kuo describing the company as “very well positioned” for the holidays.

Ahead of the hearing, two industry organizations co-signed an amicus brief urging the court to declare Trump’s tariffs unlawful.

Stuller COO Belit Myers will take on the additional role of president, with all changes effective at the start of 2026.

Smith cautions retailers against expending too much energy on things they can’t control, like the rising price of gold.

Citrine and topaz are birthstones fit for fall as the leaves change color and the holiday season approaches.

The family-owned jeweler will open its fourth store in Florida in late 2027.

The NYPD is looking for three men who stole a safe and jewelry valued at $3.2 million from the home of a jeweler in Jamaica Hills, Queens.

The trade organization also announced its executive committee and five new directors.

The “Have a Heart x Diamonds Do Good” collection is championed by model and humanitarian Flaviana Matata and will benefit her foundation.

This “Mother Father” spinner necklace from Heavenly Vices Fine Jewelry draws inspiration from Victorian Era jewelry.

The suspects were rounded up in Paris and its suburbs on Wednesday night, but none of the stolen jewels were recovered with them.

Experts share top tips on how to encourage positive reviews and handle negative feedback.

Sponsored by the Gemological Institute of America

The suspect faces charges in the August robbery of Menashe & Sons Jewelers and is accused of committing smash and grabs at two pawn shops.

The “Lumière Fine” collection was born from designer Alison Chemla’s interest in the transformative power of light.

Show off your spooky side with these 12 festive jewels.

The “Brilliant & Beyond” panel coincides with the “Love & Marriage” exhibition curated by Davis Jewelers in Louisville, Kentucky.

Consumers are feeling more optimistic about their present situation while the short-term future remains a little scary.

The company, which organizes a watch show in Geneva every spring, will bring a selection of watch brands to the 2026 Couture show in Vegas.






















