sorry-i should have added this to my post below-but just wondering-when you get a diamond from say Tiffany's or Cartier are you basically paying a premium for the name and the security and is it worth it? is the Tiffany diamond a much better cut than say your average diamond at the local jewelery store? are they much higher in price anyway? any experiences with these 2 places? my husband seems to feel that if you buy from one of these places and have to have repairs done or sizing you are guaranteed no shenanigans like diamond switching etc like you see on 60 minutes exposes! finally does anyone know-in these high end stores-can you bargain or is the price the price and thats it? thanks again!