🚫sold🚫Grey cocktail dress

Light grey strapless dress w/ cream sash and one layer tulle lining. I love this dress and have only worn it 3 times but it doesn't fit me anymore after the baby. Material is Polyester. There is a light stain in the back of the dress behind the sash ( see pic). You can't see the stain when the sash is tied up. Length between bottom of sash to the end of the dress is 19.5". Size is 7/8.