Platinum Diamond Tiffany's Ring

This is a size 5, platinum diamond infinity ring. Authentic Tiffany's! It was purchased for $2,700 before tax and shipping. Was a gift so I do not have receipt but I have taken the ring in to a jeweler to verify it was authentic (I also watched the person purchase this so I know it is authentic) and had it cleaned. Ring is just a tiny bit too big for me. Still listed on the Tiffany's site! Very very beautiful and delicate!!!