Retail giant Costco Wholesale (COST) is known as a place to buy products in bulk, such as 30 rolls of toilet paper or a 40-pound tub of sugar. Less known as a source for diamond engagement rings, ...

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 in U.S. District ...

A federal jury ruled Thursday that Costco Wholesale Corp. should pay $5.5 million to Tiffany & Co. for violating the iconic jeweler's trademark through the sale of diamond engagement rings labeled ...

(Reuters) - Tiffany & Co sued Costco Wholesale Corp on Thursday to stop the largest U.S. warehouse club chain from selling what it called counterfeit diamond engagement rings bearing the luxury ...

The high-end jewelry company contends the "Tiffany" rings sold in Costco falsely lead people on to believe they are genuine Tiffany goods. In the meantime, more people are finding that taking the ...

Tiffany & Co has ended its more than eight-year-old lawsuit accusing Costco Wholesale Corp of trademark infringement and counterfeiting for selling generic diamond engagement rings bearing the ...

Tiffany, the company that set a new standard for women’s diamond engagement rings when it introduced its trademark setting in 1886, is aiming to start a new marital tradition with a line of engagement ...

Tiffany & Co sued Costco Wholesale Corp on Thursday to stop the largest U.S. warehouse club chain from selling what it called counterfeit diamond engagement rings bearing the luxury retailer's name.

In 1886, Charles Lewis Tiffany introduced the solitaire Tiffany Setting, a simple six-prong design that became the industry standard and remains a bestseller. Ever since, generations of young couples ...

NEW YORK, July 19 (Reuters) - Tiffany & Co has settled its more than eight-year-old lawsuit accusing Costco Wholesale Corp COST.O of trademark infringement and counterfeiting for selling generic ...