New Dress with Sequins and Jacket Size 8

NWT beautiful iridescent bluish/purple fancy dress with jacket; sequins around neckline; Slight draping on bodice; Slit on the bottom; Shrug Jacket has beautiful detail cut-outs on sleeves with mesh; A real statement piece by KM Collections; The jacket tag says size 10 and the dress a size 12; The dress and jacket are really like a medium size 8; Paid $97 on sale