One shoulder formal dress

Beautiful one shoulder dress by Monique Lhuillier from Nordstrom. Color is like gun metal. Worn once as a bridesmaid. Constructed of high quality material. My guess would be that it’s a taffeta, a thick material with slight sheen. The dress holds you in and hides any lumps and bumps even though it’s not stretchy. Skirt is lined and flares out. Has side zipper and best of all, hidden pockets! Comfortable for all-day wear. Excellent condition. Waist ~15.5” Pit to pit ~ 17” Shoulder to hem ~ 39”