Lace Cocktail Dress Liz Minelli

This cocktail dress was purchased in a Mexico City boutique called Liz Minelli, while on vacay, and worn once. It is a mauve-pink Armpit to armpit 15" Waist side to side 13" Fit and flare style, the skirt has two Layers of lining, and one has mesh on it to give the skirt a stiff feel and keep its shape. the bodice has a large keyhole in back, with a button at the top. There is a stay on each side of the keyhole, in the mesh material. Please note the manufacturing irregularity on each side of the button in back... it's a little wider where the straps attach, on one side than the other. I'm wondering if it was custom made. Excellent pre-owned condition.