Black and white gown with lace and gems

Halter w/ back side straps neckline black and white prom dress with a gem lined empire waist with cut outs and lace and sequin detailing on the bust part. Hidden zipper. Illusion neckline. Worn once, light dirt marks at bottom of skirt. Size 3!!!! Not size 2- was not an option to list officially as a size 3. I am normally anywhere form a 2-4 in gowns and it fit well on me.