Diamond Markups Exposed at Tiffany, Cartier and Others

Brand name jewelry stores keep the information about their diamonds a closely held secret. They do this to keep people from finding out the truth: There is nothing special about the diamonds they are selling, and their markups are exorbitant. We went to Tiffany and Co., Cartier, Harry Winston, and Van Cleef with a hidden camera to find out which one of these stores are the biggest rip-off.