medium would be 4-6 unless its juniors medium. Will you please give measurement of it? as in width at bust, waist and hips and also length too. It'll be huge help
also how deep that is from neck is the lowest point in the back after zipping the dress. It can go terribly wrong when someone with short torso wears it so that will be great too.
I'm sorry to to reply back so late to your comments but my storage space recently had a small fire and many of my auction items were lost. I sincerely apologize for the inconvenience the website isn't letting me remove my items for some reason, once again im very sorry .