Celeb-Inspired Dresses Under $400

THE STYLE Strapless White with Embellishment from the 2006 Golden Globes
WHAT TO LOOK FOR The detailing at the waist works to create an hourglass silhouette on the slender Knightley. The silver detailing makes it easy to complete the look with silver accessories.
A LESS EXPENSIVE OPTION White Charmeuse dress, Faviana, $225; at onlineformal.com