Black long gown with lace top and side slit

Gorgeous sexy dress that my daughter wore once to her prom. In photo #2 showing the back of the dress, the zipper looks crooked- it isn't- A size 1 was too small for the size of the mannequin, so it is pulling a bit. We bought this dress at Macy's for $129 on sale from $159. Selling it now for the bargain price of $40. No flaws- it's in great shape. It has been shortened; please see measurements below: length from bottom of lace to hem = 42", side slit = 25" built-in bra, hidden zipper