Black satin strapless cocktail dress

Pretty black cocktail dress. Strapless, satin dress with a material detail long the top edge ending in a sash finish on the back which can be worn in a bow or knotted to fall down the back. Very flattering fitted finish on top with a A-line skirt. Comes to just above mid-calf on me (I'm 5'7") Dress is from the UK so tag lists the size as 10 UK (which is a US 6)