Isn't costco under investigation for selling counterfeit goods?
http://www.nytimes.com/2013/02/15/nyregion/a-tiffany-at-costco-not-now-or-ever-tiffany-lawsuit-says.html?_r=0
The discount warehouse chain
Costco got something from Tiffany for Valentine’s Day: a lawsuit claiming it had sold diamond engagement rings falsely marketed in stores using the jeweler’s name.
The lawsuit, filed on Thursday in Federal District Court in Manhattan, says a shopper complained to Tiffany late last year “that she was disappointed to observe that Costco was offering for sale what were promoted on in-store signs as Tiffany diamond engagement rings.”
In an investigation, the lawsuit says, Tiffany found that Costco salespeople referred to the rings as Tiffany, but that the rings were not promoted as such online. The suit says, “Tiffany has never sold nor would it ever sell its fine jewelry through an off-price warehouse retailer like Costco.”
As a result, the suit says, there are “hundreds if not thousands of people who mistakenly believe they purchased and own a Tiffany engagement ring from Costco.”