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 lawsuit ...

Tiffany has been awarded $8.25 million in punitive damages for Costco falsely identifying rings as “Tiffany” rings. This is in addition to $5.5 million in compensatory damages A civil jury in the ...

Discount warehouse chain Costco got no love from Tiffany on Valentine's Day. Instead of a box of chocolates and a dozen roses, Costco got slapped with a lawsuit alleging it fraudulently sold ...

Costco is best known for its bargains, but it sells a lot more than bulk toilet paper.

Costco Wholesale Corp told a federal jury on Tuesday that the company owes Tiffany & Co no more than $781,000 for counterfeit versions of the high-end jeweler's diamond engagement rings in its ...

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 ...