Blazer and skirt suit set

Gently used only a few times , bought it from Jones New York, it has metallic tread and specled colours but over all colour is plum or burgundy taupe . It say size 4 but it fits me tight at size 8 . Measurements : pit to pit 19 inches length of jacket from shoulder 23 , Waist 15.5 inch Skirt : waist 14.5 inches and 22.5 inches long