Aegean Blue Greek Goddess Slip Dress

I purchased this beautiful teal colour slip dress on the Greek island Hydra for 150€ and only wore it a couple times. I think it’s made of cupro and is luxuriously soft. I noticed there is a very faint stain across the front that is almost undetectable to the naked eye, and have thus priced accordingly. 17” pit to pit 52” long Can fit S to M