I am pretty sure the YSL dress was around (£3200) $6000 (it was made out of a nylon mix). I remember seeing it at a YSL store. The black coat (with the same feathers) cost just over £4000.I saw this YSL dress from F/W 2008 collection in some Harper's Bazaar Russia 2008 issue and I saw the price of this dress - about $27.200 (I don't remember the exact price)