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 ...

On its 175th anniversary, Tiffany & Co. celebrates that every December, women everywhere still hope for its signature solitaire in that little blue box.

Estranged couple spark heated debate after taking fight over $70k Tiffany engagement ring to Supreme Court - so who do YOU think should keep it?

Former fiancées are fighting over a $70,000 Tiffany engagement ring in front of the Massachusetts Supreme Judicial Court, testing more than a half-century of legal precedent in the commonwealth ...