Lavenderand white floor length ball gown

Lavender (or pink?) and white floor length ball gown. Gown is strapless. Corseted back paired with a zipper. Worn twice as a prom dress, no signs of wear. Can be worn with a hoop skirt (I do have one) or without one. Last photo shows dress worn with hoop skirt! Photos are part of description, please pay close attention.