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Cartier Lawsuit Accuses Tiffany of Stealing Luxury Jewellery Trade Secrets

Cartier store. Shutterstock.
Cartier sued Tiffany & Co on Monday, accusing its luxury rival of stealing trade secrets concerning its high-end jewellery from an employee it lured away in December. (Shutterstock)

Cartier sued Tiffany & Co on Monday, accusing its luxury rival of stealing trade secrets concerning its high-end jewellery from an employee it lured away in December.

According to a complaint filed in a New York state court in Manhattan, Tiffany hired an underqualified junior manager away to learn more about Cartier’s “High Jewellery” collection, where pieces typically cost $50,000 to $10 million.

Cartier, a unit of Switzerland’s Richemont SA, called Tiffany’s hiring of Megan Marino a desperate bid to revive its own high jewellery unit after it was left in “disarray” following several departures, reflecting Tiffany’s “disturbing culture of misappropriating competitive information.”

According to court papers, Tiffany appeared to pin ultimate blame on Marino by firing her after just five weeks.

In an affidavit accompanying the complaint, Marino said Tiffany was “more interested in hiring me as a source of information than as a High Jewellery manager.”

Cartier also accused Tiffany of letting a recently hired former Cartier executive work on a high jewellery project called the “Blue Book” despite her six-month non-compete agreement.

Tiffany and its parent LVMH Moet Hennessy Louis Vuitton SE did not immediately respond to requests for comment.

The lawsuit seeks an injunction requiring that Tiffany return and not use stolen trade secrets, plus unspecified damages.

On Jan. 19, Richemont said strong demand for jewellery and watches following a trough earlier in the coronavirus pandemic boosted quarterly sales by 32 percent.

Sales at Richemont’s jewellery brands Cartier, Buccellati and Van Cleef & Arpels rose 38 percent.

The case is Cartier v Tiffany and Co, New York State Supreme Court, New York County.

By Jonathan Stempel; Editor: Sandra Maler

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