Dave and Johnny A4961 - The Unique Prom Store
I love love love this dress! I am 5'8 and 160 lbs, and at a large this dress reaches a little under mid thigh. It fit but was just a tad loose in some places, but over all it was a very flattering dress.
Source : https://www.pancrystal.com/en/dave-and-johnny/2291
Does this belong to you Or do you know who sells it ?