Women's Dark purple Chiffon formal dress Size 8-10

It was a bridesmaid dress for my little sister's wedding. With its style, I also used it as a Greek goddess dress/costume. Is purple chiffon with a v-neck front, pleated waist, and flowy long skirt with a divided top layer. Very comfortable and can move with ease while wearing it. Brand unknown as it was altered and the seamstress took the tag off.