Beautiful purple Prom/Quinceanera dress

Beautiful purple- Prom/Quinceanera dress in excellent condition only worn 1 time, like new, bought from Macy's original price was $355, no tag for size, I believe it is a size 7/8 and have posted pictures for measurements side zipper and lining for fullness, the pink dress is a 7/8 and the purple dress laid up against the pink one is the same size