Lulus Glamorous in Glitter black long open back dress

Retails 100$+ The dress is in almost great condition There is a streak stain in the back left side, I dont really understand what it was caused by(possibly could be professionally cleaned) stain shown in photos close up and far away Has a wire V line in the bust area Dress has some stretch to it If measurements needed or any questions pls lmk Tags: summer vacation party wedding prom sexy v neck beautiful cute stylish trendy shiny black tie