Former De Beers Exec Celine Assimon Joins Bonhams
Assimon is the auction house’s new chief commercial officer.

Assimon brings more than two decades of experience leading commercial strategy, client engagement, and brand development across global markets.
Prior to joining Bonhams, Assimon was CEO of De Beers London, where she led a major brand transformation, expanded its international retail presence, and implemented customer-centric strategies, the auction house said.
Previously, she has served as CEO of De Beers Forevermark, CEO of De Grisogono, and held senior leadership roles at Richemont and Louis Vuitton, including international director of high jewelry and exceptional pieces at Piaget.
Assimon is also a certified diamond graduate from the Gemological Institute of America.
In her new role, Assimon will be based in London and oversee global commercial strategy and drive client experience across all areas of the business.
Bonhams said she will be instrumental in aligning the company’s commercial vision with its expanding global platform, ensuring consistent growth and innovation across the auction house’s diverse portfolio of categories.
"We are delighted to welcome Celine Assimon to Bonhams. She brings a powerful blend of commercial expertise, leadership, and a deep understanding of the luxury market,” said Bonhams Global CEO Chabi Nouri.
“Her appointment reinforces our commitment to strengthening client relationships and enhancing Bonhams’ global commercial capabilities."
Assimon said she is thrilled to join the auction house at such a dynamic point in its evolution.
"With its exceptional heritage and forward-looking vision, Bonhams is uniquely positioned in the auction world. I look forward to contributing to its continued global growth and success," she said.
The Latest

Take a bite out of the 14-karat yellow gold “Fruits of Love Pear” earrings featuring peridots, diamond stems, and tsavorite leaves.

The one-day virtual event will feature speakers from De Beers, GIA, and Gemworld International.

The California-based creative talks jewelry photography in the modern era and tackles FAQs about working with a pro for the first time.

The countdown is on for the JCK Las Vegas Show and JA is pulling out all the stops.

The foundation has also expanded its “Stronger Together” initiative with Jewelers for Children.


The De Beers Group CEO discusses the company’s new “beacon” program, the likelihood diamonds will be exempt from tariffs, and “Origin.”

The Danish jewelry giant hosted its grand opening last weekend, complete with a Pandora pink roulette wheel.

When investing in your jewelry business, it's important not to overlook the most crucial element of success: the sales associates.

Industry veteran Anoop Mehta is the new chairman and independent director of the IGI board.

The winners of the inaugural “Kering Generation Award x Jewelry” are student Lee Min Seo and China-based startup Ianyan.

“Ombré Desert Diamonds” will emphasize cream-, champagne-, and brown-colored diamonds, shades that set natural stones apart from lab grown.

The brand also debuted its new “Zorae” collection featuring a talisman of protection and harmony inspired by a sheaf of wheat.

As Loudr’s new account manager, Johansen will partner with clients to craft and execute marketing strategies.

Designers were recognized in 12 categories, from platinum to pearls, before the evening ended with a new, retail-focused award.

The rare turquoise and diamond jewel was the top lot at Bonhams’ June jewelry sale.

This year’s honorees include a Midwest retailer and two multi-store independents, one in New York and the other in New England.

The deadline to submit is June 16.

The diamond wholesaler is working with the insurance provider to seamlessly offer personal jewelry insurance to RDI retailers’ clients.

As an homage to iconic crochet blankets, the necklace features the nostalgic motif through a kaleidoscope of cabochon-cut stones.

Discover the dozen up-and-coming brands exhibiting in the Design Atelier for the first time.

The “Royal Ruby” Collection is a quintet of untreated rubies curated by collector Jack Abraham.

The entrepreneur and “Shark Tank” star will share his top tips for success.

Two existing executives have been given new roles.

Meredith Tiderington, an electrical engineering student, was selected for the award.

It will quit assigning the stones specific color and clarity grades in favor of applying “new descriptive terminology.”

From design trends to sustainability, here’s a roundup of can’t-miss education sessions at JCK Las Vegas.

The Jewelers’ Security Alliance offers advice for those attending the annual trade shows.