Policies & IssuesApr 28, 2026
Tariff Refunds: How to File, What to Expect Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.
MajorsJan 03, 2019
De Grisogono Hires Luxury Veteran as CEO
The high jewelry and watch brand named Piaget executive Céline Assimon to succeed John Leitao.
Piaget executive Céline Assimon is stepping into the role of CEO at high jewelry and watch brand De Grisogono.
Zurich, Switzerland—Swiss brand De Grisogono has a new CEO.
The high jewelry and watch company has hired Céline Assimon to succeed John Leitao, who stepped into the position in May 2013.
Assimon most recently served as the international high jewelry and exceptional pieces director at Piaget, according to her LinkedIn.
Prior to that, she served as watches and fine jewelry director and then the worldwide head of high jewelry and high watchmaking sales at Louis Vuitton. She also worked at Leviev for a time.
In her new role, Assimon will work to develop the brand globally while expanding its product offerings to appeal to a wider variety of consumer.
“With her exceptional business track record, broad experience of the jewelry market and global luxury brands, she is the ideal person to lead the company to the next stage of its journey to becoming a global luxury brand,” board chairman Elmar Wiederin said.
De Grisogono has been reorganizing since disappointing sales led the company to lay off a number of employees last spring.
When it announced the cuts, the company also said it was going to scale back production capacity to reflect the atmosphere and focus on more affordable fine jewelry, a move that echoes Piaget’s foray into friendlier price points during Assimon’s tenure.
Editors' Picks
Sponsored by
More on Majors
The Latest
IndependentsApr 28, 2026
This North Carolina Jeweler Is Passing the TorchThe owners of Gregory Jewelers in Morganton, North Carolina, are heading into retirement.
SourcingApr 28, 2026
Doug Hucker Retires From ICAThe colored gemstone industry leader is heading into retirement after four years as the association’s CEO.
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las VegasGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
SourcingApr 28, 2026
NDC Hires Tapestry Exec to Head Global Marketing Susie Dewey joins the Natural Diamond Council as its new chief marketing officer.
Weekly QuizApr 23, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
AuctionsApr 27, 2026
12 Years Later, the ‘Ocean Dream’ Diamond Resurfaces at Christie’sThe largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.
ColumnistsApr 27, 2026
Stop Treating Mother’s Day Like an AfterthoughtEmmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the GlobeGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
IndependentsApr 27, 2026
Longnecker Jewelry Celebrates 30 YearsIn honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.
SurveysApr 24, 2026
Mother’s Day 2026 Jewelry Spending to Top $7B, NRF SaysNRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.
TechnologyApr 24, 2026
TwentyFour’s Digital-Age Locket Is a Virtual VaultThe “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.
Events & AwardsApr 24, 2026
Hamptons Jewelry Show to Return in JulyThe open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.
IndependentsApr 23, 2026
Meet the Real Moms of Day’s JewelersThe jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value GoodsSponsored by Jewelers Mutual
Lab-GrownApr 23, 2026
Charles & Colvard May Sell Assets for $1.5MThe proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1MThe Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.
CollectionsApr 23, 2026
Adam Neeley’s High Jewelry Collection Steps Into Salvador Dalí’s GardenThe “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.
IndependentsApr 23, 2026
Windsor Jewelers Names New Buying DirectorNatalie Feanny has been appointed to the role.
CrimeApr 22, 2026
New Mexico Couple Pleads Guilty to Selling Fake Native American JewelryThe pair falsely claimed their jewelry was made by Navajo artists, but it was imported from Vietnam.
AuctionsApr 22, 2026
Roberta Flack’s Jewelry Is Going Up for AuctionJulien’s Auctions is selling the musician’s fine and fashion jewelry alongside her clothing, gold records, and other memorabilia.
CollectionsApr 22, 2026
British Museum Curator Pens Book on ‘The Tudor Heart’Rachel King’s book dives into the history of the pendant believed to have belonged to Henry VIII and his first wife, Katherine of Aragon.
Events & AwardsApr 22, 2026
Here’s What Sy Kessler Has on Tap for Las Vegas The company will have deals on precious metals testers as well as the latest in lab-grown diamond detection technology and security.
WatchesApr 21, 2026
Coco Chanel Enters the Game with New Watch CollectionGabrielle “Coco” Chanel is a character in the “Coco Game” collection of watches and the queen in its first haute horlogerie chessboard.
IndependentsApr 21, 2026
Meet Jewelers of America’s 2026 ‘20 Under 40’ ClassThe annual list honors rising professionals on the retail and supply sides of the jewelry industry.
CrimeApr 21, 2026
Customs Nabs 1,500 Pieces of Counterfeit Jewelry Bound for NYCSeized in Kentucky, the packages include fake Cartier, Tiffany & Co., Chanel, and Fendi jewelry.
CrimeApr 20, 2026
Queens Man Convicted in Bludgeoning Death of Pawn Shop OwnerRodolfo Lopez-Portillo faces 25 years to life in prison after being found guilty in the March 2022 beating death of Arasb Shoughi.
TrendsApr 20, 2026
Beth Bernstein, Sonia Esther Soltani Pen New Jewelry Book“Jewelry Creators: Dynamic Duos and Generational Gems” highlights the relationships among 22 influential designers, brands, and gem dealers.
