A few years ago, I bought the Iriza half d'orsay pumps in patent black. I wore them maybe once and that too indoors. Anyhow, three pregnancies later, my shoe size changed and they don't fit. I think I paid around $700 US more or less plus taxes. I am thinking about selling them but I don't have a receipt or any documentation (besides the box) to prove they are authentic. Is there any way for someone to tell if they are authentic? (I dont mean on this forum specifically but just in general say if someone buys it so they are satisfied). What price do you think would be reasonable to ask for them?