Costco had been accused of trademark infringement and counterfeiting in a lawsuit for using the "Tiffany" name in selling of diamond engagement rings.

NEW YORK — Tiffany has beaten Costco to the tune of at least $19.4 million in a trademark infringement battle over alleged knock-off rings that pitted the luxury jeweler against the membership ...

Consumer electronics, clothing, fridges, televisions, washing machines and other bulky items have also boomed for Costco’s 13 stores in Australia, bolstered by a burgeoning online platform, that is ...

Membership-only retail chain Costco Wholesale Corp beat market expectations for quarterly revenue on Thursday, helped by strong demand for fresh foods, snacks, household items and jewellery. Shares of ...