I orignially bought the 8 1/2 but they were just a bit too big.  So i returned them and got the 8.  OMG these shoes are perfect for my wedding.  I got the ivory and they are so beautiful.  They are really comfy too.  They are high so if you aren't used to wearing heels they may not be for you but they do have the plat form so you don't really feel like you are wearing a 4 inch.  I just love them.