London-based investment firm Pemberton Asset Management acquired the auction house for an undisclosed amount.
Amsterdam Sauer Founder Dead at 95
Jules Roger Sauer, a Brazilian gemstone and design legend, discovered the first Brazilian emerald deposit.

Rio de Janeiro, Brazil--Jules Roger Sauer, the founder of Brazil-based jewelry design company Amsterdam Sauer, died this year. He was 95.
Originally from France, Sauer settled in Brazil at the age of 18, founding the Lapidação Amsterdam, or Amsterdam Lapidary, in 1941. The jewelry design company was later renamed Amsterdam Sauer.
Sauer was a legendary presence in the gemstone and jewelry industry, responsible for discovering the first Brazilian emerald mine in 1963, and for promoting a variety of Brazilian gems in the international market.
In the 1950s, Sauer obtained the 80.47-pound rough Martha Rocha aquamarine, which was said to match the eyes of its namesake, a popular Brazilian beauty queen. The famous stone yielded 50,000 carats of faceted gemstones of the highest-quality color.
Sauer opened his first jewelry boutique in 1956 and today, according to the company’s website, there are 15 locations across Brazil.
Amsterdam Sauer boasts its own museum in Rio de Janeiro, outlining how the gem and jewelry house helped shape the Brazilian and global gem industries.
Sauer was born in the Alsace region of France in 1921 to Jewish parents. He was living in Belgium in 1939 when the principal of his polytechnic school warned him to flee the Nazis.
Sauer made his way to Spain by bike, a journey of more than 1,000 miles. He was briefly arrested there for having no identification but ultimately released, making his way to Portugal and then South America by ship. He was only 18.
He initially taught French in Rio de Janeiro to support himself then took an opportunity offered by a student to work at a gemstone business in the state of Minais Gerais. There, he learned to facet stones.
A mere two years later, Sauer founded his company. He specialized in translating large gems to jewelry while keeping as much size from the original stone as possible. His entire supply chain was in-house, from the selection and cutting of the rough stones to the finished designs that he sold in his store.
He worked with his wife Zilda Waks Sauer, a Polish immigrant who also expatriated in Brazil. They were married in 1950.
Sauer’s son Daniel, the CEO of Amsterdam Sauer said, “My father fell in love with the Brazilian people, their way of life and the colors of the country. I think that, during his whole life, his intention was to pay tribute to
Sauer is survived by his son Daniel; daughter, Debora; seven grandsons; and four great-grandchildren.
He was preceded in death by his wife, Zilda, in 2013.
Throughout Sauer’s 75-year career he won many awards, the first of which was a Diamonds International Award in 1966. He was made a member of the Circle of Honor of the Gemological Institute of America in 2004 and was awarded a Lifetime Achievement Award from the International Colored Gemstone Association in 2007.
Sauer also was an “Honorary Citizen” in several Brazilian cities: Belo Horizonte, Teófilo Otoni, Governador Valadares, São Paulo and Rio de Janeiro.
The Latest

The workshop will give attendees the chance to try out and ask questions about three different diamond verification instruments.

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

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

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


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

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.

Alexis Vourvoulis, who most recently worked at Tiffany & Co., brings more than two decades of jewelry experience to her new role.

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.

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.




















