From electronics to jewelry and home upgrades, these are the 7 best new Costco deals in the 12 Days of Deals sale this week.

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, ...

Discover seven new Kirkland Signature items shoppers can’t stop buying, from bakery favorites to deli meals and viral skincare essentials.

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 ...