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.
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