Strapless evening gown with jewel embellishment.

Beautiful evening gown, great for prom or pageants. It is a vibrant blue, true to color in picture. It has a long slit in the front (pictured). Overall great condition, however there is discoloration in the back. I showed a close up picture where it is very visible and then a picture of it down where it's hard to see when wearing. I have not tried to clean it so it may come out.