McCormack looked to the 19th century’s “golden age” of astronomy when designing her new celestial-themed collection.
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

Nelson will be honored as the inaugural grant winner at the Gem Awards gala on Friday.

The new smart design software allows jewelers to configure, price, and confirm a custom engagement ring in real time for in-store customers.

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

The 10,000-square-foot diamond manufacturing facility officially opened in late February and employs 50 people.


The MJSA Education Foundation’s scholarships support students pursuing jewelry careers.

Skelly shares her plans for reimagining the fine jewelry retailer she re-acquired after it faltered last year.

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

The collection takes inspiration from the emotional space between people, moments, and experiences.

In 2026, the jewelry retailer is celebrating a milestone only a small percentage of family-owned businesses survive to see.

The group of jewelers held a jewelry raffle in support of the Children’s Hospital of Richmond at VCU.

The jewelry giant released preliminary results for the fourth quarter and full year on Monday, with final results slated to come next week.

The retailer also gave an update on its vendor partnerships.

The award-winning actress is the “epitome of modern allure,” the brand said.

The “Bloom” collection draws from the flower power movement of the 1960s and ‘70s with inlay pendants offered in eight colorways.

The unique piece was one of the custom works offered at the foundation's recent silent art auction, which garnered nearly $15,000 in total.

Bulgari named Gyllenhaal as its brand ambassador for his embodiment of artistic depth, intellectual curiosity, and warmth.

Awards were given to four students, one apprentice, and an emerging jeweler.

Moses, who started at GIA’s Santa Monica lab in 1976, will leave the Gemological Institute of America in May.

Increased competition, falling lab-grown diamond and moissanite prices, and the rising cost of gold took a toll on the moissanite maker.

The earrings, our Piece of the Week, feature pink tourmalines as planets orbiting around an aquamarine center set in 18-karat rose gold.

“The Price of Freedom” campaign video for International Women’s Day confronts the quiet violence of financial control.

Also, a federal judge has ordered that companies that paid tariffs implemented under the IEEPA are entitled to refunds.

The ever-growing collection, which just expanded with the addition of Olga of Kyiv, features cameos of 12 women from history.

We asked a jewelry historian, designer, bridal director, and wedding expert what’s trending in engagement rings. Here’s what they said.

The annual event will be held in Orlando, Florida, from Sept. 14-17.

The “Outlander” star modeled for the digital cover of the magazine’s spring issue, which features a story on her relationship with jewelry.




















