The workshop will give attendees the chance to try out and ask questions about three different diamond verification instruments.
This Ring Belonging to a Klimt Muse Just Sold at Auction
The diamond “toi et moi” ring was owned by the husband of Adele Bloch-Bauer, better known as “The Woman in Gold.”

Headlining the jewelry auction was a “toi et moi” ring from the Art Nouveau period originally belonging to Ferdinand Bloch-Bauer and believed to have been worn by his wife, Adele, the subject of famed painter Gustav Klimt’s “The Woman in Gold.”
wn diamond and a 1.85-carat round near-colorless diamond, the ring was estimated to sell for approximately $6,322 to $8,850, but smashed those figures, garnering $55,318.
Of the piece’s historical significance, the head of Sotheby’s London jewelry department, Kristian Spofforth, said: “The story of this ring intertwines with that of one of the most iconic paintings in the history of art.
“Klimt immortalized Adele Bloch-Bauer in an armor of gold and jewels, demonstrating the rich dialogue between the disciplines in the Art Nouveau movement. The jewel is a glittering fragment of the opulence of early 20th-century Vienna. The simplicity of its design and its beautiful curved lines also make it a jewel of timeless modernity.”
Adele Bloch-Bauer was a society figure and patron of the arts in turn-of-the-century Vienna. She was born into a wealthy Jewish Viennese family in 1881, and in 1899 married industrialist Ferdinand Bloch.
Together, Adele and Ferdinand were key players in the burgeoning capital of art, music, architecture, philosophy and literature, hosting creatives like Stefan Zweig and Arthur Schnitzler at their famed weekly salons.
Adele died of meningitis in 1925, at age 43. Klimt’s painting of her cloaked in gold and jewels (which actually was called “Portrait of Adele Bloch-Bauer I”) was stolen by the Nazis, and was one of a handful of works belonging to the Bloch-Bauer family that relatives later successfully fought the Austrian government to return. The family's fight was the subject of a 2015 movie starring Helen Mirren called “Woman in Gold.”
As for the toi et moi ring, Ferdinand eventually gave it to his great-niece Helen Marie Stutzova as a wedding present. She in turn bequeathed it to her daughter, Charlotte Mayer.
The ring’s fascinating history doesn’t end there. It made its way to London in 1939 when Stutzova and Mayer fled to the English capital to escape the Nazis. Mayer became an accomplished sculptor in the United Kingdom and the ring remained in the family until its sale Tuesday to a private bidder.
For more sale results, visit 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.




















