Dress: Wool-Crepe Dress by Alexander McQueen (exact color not online)
Margaux Lemarchal (played by Karine Vanasse) on Revenge on ABC was spotted wearing this white cowl neck dress on Revenge on episode 'Repercussions' (4x05) in Oct 2014. Margaux's Dress is the Wool-Crepe Dress by Alexander McQueen .