SAN FRANCISCO (KGO) -- There is a new development in the legal battle between Costco and Tiffany's.
A judge ruled yesterday that Costco must pay the jewelry company $19.3 million for selling "Tiffany" engagement rings that weren't made by the jeweler.
Costco had argued it was using "Tiffany" as a generic term to describe a ring's setting.
The store said the rings weren't marked with the Tiffany name, and were not sold in the company's distinct blue boxes or bags.
Costco plans to appeal.
Costco ordered to pay $19.3M for selling "Tiffany" rings
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