A few days ago on my Show Me Your Dress post, a Knottie mentioned Chelsea from a Four Weddings episode had my identical dress.
After searching all over the internet, I found the designer of her dress and the Style #. Turns out, we DO have the same exact looking dress, but her particular dress is from Essence of Australia, and mine is from David's Bridal. Which means DB copied a high end designer.
Here is Essence of Australia's Website Picture in Champagne
(They also have it in Ivory and White)
I found this from Google Images
Here are DB pictures

Now I feel cheap and I'm sure the designer wouldn't be too thrilled that DB took their dress and created the exact same thing.