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 ...

One thing you may have never expected to find at Costco — a place where we commonly go to stock up on things like paper towels and peanut butter pretzels — is a stunning collection of jewelry, ...

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 ...

Costco had been accused of trademark infringement and counterfeiting in a lawsuit for using the "Tiffany" name in selling of diamond engagement rings.

A federal jury told Costco to pay Tiffany and Co. $5.5 million in compensation for selling counterfeit Tiffany diamond engagement rings. Last year, a district judge ruled that Costco had knowingly ...

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 ...

If we're talking luxury, let's really talk luxury, because seriously, Costco sells diamonds! We're talking engagement rings, necklaces, earrings, and more. All of Costco's gems are GIA-certified, too.

Tiffany has been awarded $8.25 million in punitive damages for Costco falsely identifying rings as “Tiffany” rings. This is in addition to $5.5 million in compensatory damages A civil jury in the ...

NEW YORK (Reuters) - Costco Wholesale Corp willfully infringed Tiffany & Co's trademarks by selling counterfeit diamond engagement rings bearing the luxury retailer's name and must face a jury trial ...