From year end parties to formal dinners, this jewel tone emerald green dress is perfect take it from Keira Knightley! Equal parts formal and understated, we love it for the flattering knee length lace Green has always been an iconic color. Instead of the classic little black dress that Chanel once defined as a symbol of femininity, these celebrities prove that green dresses can be just Chanel Iman showcases never ending legs in slinky olive green dress Green dress, Olive green Alexa Chung Just Re Created Keira Knightley's Iconic Atonement Dress Who What Wear