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 ...

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 ...

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 ...

A federal appeals court has overturned Tiffany & Co.'s judgement against Costco regarding the use of the word "Tiffany" in relation to the retail giant's diamond engagement rings. Per Reuters, "In the ...

In a highly publicized decision of over a year ago, [1] Judge Swain of the U.S. District Court of the Southern District of New York ruled in favor of the luxury retailer Tiffany and Co., deciding that ...

Costco must pay the storied jewelry company Tiffany & Co. more than $19 million for selling about 2,500 diamond rings falsely identified on store signs as “Tiffany” rings, a federal judge ruled Monday ...

Costco Wholesale and Tiffany and Co. agreed to settle a long-running lawsuit over the warehouse retailer’s sale of “Tiffany” diamond engagement rings. The fabled jewelry store chain first sued Costco ...

Is your engagement ring as real as your love? Wholesale retailer Costco was ordered to pay jewelry company Tiffany & Co. more than $19 million in damages after a federal judge ruled Costco sold ...