When you think of where to buy your engagement ring, you might think of Zales, Tiffany & Co., or Blue Nile. But if you've ever walked past the diamond counters at a Costco warehouse, you might be ...

NEW YORK (AP) — A Tiffany & Co. subsidiary is suing Costco, claiming the wholesale club operator has been selling engagement rings wrongly labeled “Tiffany” rings. The high-end jeweler filed lawsuit ...

Did you know you can buy diamond rings at Costco? And expensive ones, at that. The warehouse retailer said during its latest quarter ended May 12 it got a sales boost thanks to a customer purchasing ...

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PHOENIX - Police have arrested a Mesa woman accused of stealing diamond rings at Costco stores across the Phoenix metropolitan area and swapping them out with fake ones. Keisha Joice is suspected of ...

On October 5, 2016, a Southern District of New York jury ordered Costco Wholesale Corp. (“Costco”) to pay Tiffany & Co. (“Tiffany”) an additional $8.25 million in punitive damages for selling “Tiffany ...

Luxury retailer Tiffany & Co. is seeking millions in damages from warehouse club Costco, alleging the discount retailer was selling counterfeit Tiffany diamond rings. The lawsuit, filed in U.S.

Costco is off the hook for a $21 million payment to Tiffany & Co., a federal appeals court said Monday. Tiffany accused Costco in a 2013 lawsuit of trademark infringement and counterfeiting for Costco ...