EXCLUSIVE TO NET-A-PORTER.COM. Roksanda Ilincic's color-blocked 'Hepworth' gown is a standout choice for evening. Paneled with ivory, lime-green and midnight-blue silk-satin and bright-blue washed-silk, it's fully lined for a fluid drape. The slight train adds drama to the clean silhouette. Style yours with sleek jewelry and a mirrored clutch.