We've no idea what the dress will look like. She's been very successful at keeping it under wraps. We also don't know for certain who the designer is; several names have been mentioned. Interestingly, Sophie Cranston of Libelula is now being suggested, and I had wondered about her as a possibility. She designed that black velvet coat that Middleton wore to a wedding some weeks ago.You can choose Prom Dresses Under 200,Prom Dresses 2011 ,Ivory Flower Girl Dresses from GoodGoodsChina.com. Sarah Burton of Alexander McQueen; Alice Temperley; Philippa Lepley; Daniella Helayel of Issa; Bruce Oldfield -- all have been suggested. Let's just wait and see.