Okay, here's a much, much better look at the Blair Waldorf wedding gown...

Here's the write-up: http://news.instyle.com/2011/11/16/blair-waldorf-wedding-dress-designer-vera-wang/ 

The gown is Vera Wang. Fine.

I am looking something else on Tumblr (GG-related) and all it does is show me Blair's wedding gown over and over again...