Laundry by Shelli Segal Knockout Dress

Laundry by Shelli Segal Knockout Strapless Dress in Size 2 but it fits like a 0. My dress form is an XS/2 and it was a struggle to zip up the back. White (called Pearl) with Bugle beads and pronged rhinestone-like Silver embellishments down the front. The dress is fully lined but there is also an interior separate bodice piece, almost like a corset, with boning. EUC.