The workshop will give attendees the chance to try out and ask questions about three different diamond verification instruments.
The top 10 lots from the ‘Bunny’ Mellon sale
Leading the sale of jewelry that once belonged to the horticulturist, art collector and philanthropist was a 9.75-carat fancy vivid blue diamond that set two world auction records.
The stone, which was renamed the “Zoe Diamond” by its Hong Kong purchaser, was part of the “Property from the Collection of Mrs. Paul Mellon: Jewelry & Objects of Vertu” sale at Sotheby’s New York on Thursday and Friday.
Mellon, whose real name was Rachel, was a well-known horticulturist, art collector and philanthropist, and was the second wife of wealthy horse breeder Paul Mellon. She died earlier this year at the age of 103.
The auction of her belongings totaled $45 million, more than doubling its pre-sale estimate. It was 97 percent sold by lot and 100 percent sold by value, according to Sotheby’s, with 85 percent of the lots exceeding their high estimates.
Other top lots in the sale included a fancy blue diamond pendant that doubled its pre-sale estimate when it sold for $3 million, and a gold and diamond rivière necklace by Cartier that also doubled its early estimates by garnering $2.8 million.
Two gold, sapphire, diamond, and ruby bracelets also went up on the auction block--one signed by Cartier sold for $989,000, and the other (unsigned) sold for $557,000. A gold, enamel and gem-set Verdura table ornament sold well over its estimate of $10,000 to $15,000 when it garnered $221,000.
Rounding out the top 10 were a platinum, ruby and diamond bracelet for $149,000; an 18-karat gold, platinum, fancy yellow diamond and diamond bracelet from Black Starr & Frost that also sold for $149,000; a gold, rock crystal, and gem-set rhinoceros that sold for $143,000; and an 18-karat gold, platinum, citrine, and diamond Cartier bracelet that sold for $137,000.
The full list of results can be found on the Sotheby’s website.
The Latest

The footage shows two of the jewelry heist suspects descending from the second floor of the museum and then escaping via scooter.

Founder and designer Rosanna Fiedler looked to a vintage Cartier clutch when designing the sunlight-inspired drop earrings.

As the holiday season quickly approaches, consider stocking one category that sometimes gets overlooked: earrings.

The luxury conglomerates faced a challenging Q3 amid geopolitical and economic tensions.


The struggling diamond mining company, which owns the historic Cullinan mine, has launched a rights issue to raise about $25 million.

The book details the journey of watches as symbols of hard-earned success in hip-hop for artists like 2Pac, Jay-Z, and more.

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

The superstar’s August engagement put the stamp of approval on an already hot engagement ring trend.

Retailers should offer classic styles with a twist that are a perfect fit for layered looks, experts say.

The nearly 7-carat fancy vivid purplish pink diamond could sell for around $9 million.

The retailer’s new collection of engagement rings and fashion jewelry is set with natural diamonds that are traceable via blockchain.

Chief Artistic Officer Nathalie Verdeille has reimagined the iconic design in both figurative and abstract creations.

Five dollars buys one vote toward an industry professional you want to see dressed up as a hero, or a villain, this Halloween.

Recently acquired by KIL Promotions, the November edition of the public show in San Mateo, California, will be held Nov. 7-9.

The stone’s two zones, one pink and one colorless, may have formed at two different times, the lab said.

Hollywood glamour meets Milanese sophistication in the design of Pomellato’s new store in Beverly Hills, California.

The New York City store showcases a chandelier with 1,500 carats of lab-grown diamonds designed by an FIT student.

The Museum of Arts and Design's new exhibition features 75 pieces by the designer, best known for her work in the “Black Panther” films.

Making its auction debut, "The Glowing Rose" is expected to fetch $20 million at the November jewelry sale in Geneva.

They were attacked on Oct. 15, as approximately 40 miners without licenses marched on the mine’s gate.

It took the masked thieves less than 10 minutes to steal eight irreplaceable jewels from two display cases in the museum’s Apollo Gallery.

Gemologist Lauren Gayda has previously worked at The Clear Cut, Taylor & Hart, and Effy Jewelry.

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

The new showcase dedicated to Italian jewelry design is set for Oct. 29-30.

Take a gaze at the sky with this pair of platinum diamond-set star earrings with blue lace agate drops.

Jeffrey Zimmer's decades of leadership at Reeds Jewelers are defined by integrity, a love of sourcing gemstones, and a heart for community.




















