You Can Wear Monique Lhuillier to a Wedding For Less Than $300

Blue strapless dress with full tulle skirt ($325, retails for $2,995)

"This is everyone's favorite," Guillemette said. "It's so sculptural and couture feeling. The color is so rich and saturated, and it has the peplum detail that's still so popular. It's as exciting from the back as it is from the front."