Senior managers at Tiffany & Co allegedly tried to obtain information in an “inappropriate” way on Cartier’s activities in the United States through a former employee, it said in an email to AFP.
“Cartier fully respects the right of its competitors to pursue their commercial objectives,” it said.
“In this case, however, Tiffany’s commercial ambitions crossed the line between the ordinary course of business and unfair competition,” it added.
According to the complaint, before she left Cartier, the employee accessed drives, files and documents for which she had no business need as an employee of the company.
High-end jeweller Tiffany, which was bought by French luxury giant LVMH last year, strongly denied the claim.
“Tiffany formally denies these baseless allegations and plans to vigorously defend itself,” the US firm said.