While we're shopping for wedding dresses at J.Crew, why not look for bridesmaid dresses, too? I spotted these two on the Zara website. Each costs $79.90. They're not actually bridesmaid dresses, which is part of the beauty of them, but of course limits the sizes available.
I love the colors and the delicacy, especially of the second one. Could be WONDERFUL for a ballet-inspired wedding. Unfortunately, Zara doesn't sell its clothes online, but they have storefronts in several major U.S. cities, including Washington, D.C., New York City and San Francisco.