If you think Costco’s best deals are hidden somewhere between the paper towels and the rotisserie chicken, you’re missing one ...

Jewelry might not be the first thing that comes to mind when you think of Costco, but the warehouse club has a wide selection of fine jewelry -- and it's offering some major discounts on bracelets, ...

Costco will have to fork over at least $5.5 million to Tiffany & Co. after it sold about 2,500 engagement rings from display cases emblazoned with the name of the famed jewelry store. The amount ...

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 ...

A Manhattan federal judge ruled warehouse retailer Costco Wholesale Corp. must pay Tiffany & Co. more than $19 million for selling what it marketed as "Tiffany" engagement rings. The ruling stems from ...