Authentic Rare Christian Dior Crystal Pumps EUC

EUC Christian Dior Satin Pumps. 5” heel, with crystal brooch at the toe. Comes w dust bag. I bought used from the real real and only wore once myself on my wedding day. There is some discoloration on the heel and base of shoe - see pictures - I have read they can be blotted with water or mild soap but to be honest I’m terrified to touch them myself and make it worse. Someone more savvy with this stuff could probably lift most of that discoloration. Not very noticeable when wearing.