Minor damage (small stain)

I got this dress from Closet Child second hand, I have only tried it on as it doesn't fit a bustier Lolita (´；ω；`)
It's in good quality with very very very slight discolouration but still quite vibrant. 
There is a little green stain on the front of the dress that came with it when I first bought it. It's pretty unnoticeable however.
international buyers: I do not know how much shipping is going to cost you as this is my first sale(´∀｀*)