Black prom/formal dress!

This dress is something I wore to my senior prom 3 years ago and never touched again. It is absolutely gorgeous with comfortable, flowy/stretchy material and false rhinestones lining the neckline and back. It is low cut in the back with diamond straps. The tag says it is a zero, but I am normally a dress size 2-4, so I believe it runs big since it fit me perfectly. There is a slit to the left middle that can only be seen if you purposely make it evident. It's in great shape!