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 ...

The savings run deep at Costco -- perhaps deeper than you've ever thought. Check out some of the wildest items you can buy ...

Costco owes more than $19 million, a federal judge ruled Monday, for selling engagement rings it named after the storied jewelry shop Tiffany’s. MANHATTAN (CN) — Finding that Costco’s so-called ...

Tiffany & Co. is suing Costco for allegedly marketing engagement rings as "Tiffany" brand. The lawsuit claims Costco sold engagement rings in stores under the label "Tiffany" in stores but never ...

"We're not very traditional or lovey dovey in in the way that you see in regular engagement photos." "I was joking around with a coworker because I love Costco and my fiancé likes Costco ...