The Supreme Court won't overturn a ruling that says eBay isn't violating Tiffany's trademarks by selling items on its website that might be counterfeit.

The high court on Monday refused to hear an appeal from Tiffany Inc.

Tiffany sued eBay in 2004, saying eBay engaged in trademark infringement and dilution because most items that sellers list for sale as genuine Tiffany silver jewelry on its sites were fakes.

But the lower courts said eBay took down listings when Tiffany informed the company that the materials were counterfeit. The judges said eBay cannot be held responsible for counterfeits being sold on its site if the website doesn't know the items are fake.

Tiffany wanted the Supreme Court to reconsider that ruling.

The case is Tiffany Inc. v. eBay Inc., 10-300.