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 ...

While Tiffany & Co. does not have a buy-back program, Tiffany does have an upgrade program for engagement rings. Tiffany will give you store credit equal to your original purchase price, which you ...

Luxury jeweler Tiffany & Co. has debuted an iPhone application that merges mobile and interactive shopping for consumers who are looking to select an engagement ring. The Tiffany & Co. Engagement Ring ...