This is the Amalia Gown from Anthropologie's wedding line called BHLDN.
It is a size 4 and has had little alterations. The dress is made of lace and is an ivory color. It also has a beautiful scalloped train. The length of the dress is the original length and it was taken in on the torso part just a smidge. If it helps, I am 5’9” and wore 4” wedges. There is also a bustle on the back right below the buttons.