White Floor Length Prom Gown Size 11

White floor length gown, never worn. Purchased for my junior prom but didn’t end up going. It’s new with tags but there is a small stain on the inside armpit area (pictured) that I think was from trying it on. Dress is a size 11, I fit it as a 12 and so did my friend who is a 10. Purchased for $179, selling for $110 obo.