A brand ambassador for Chanel for several years now, British actress Keira Knightley now has a new role as the face of Chanel Fine Jewelry. The 31-year-old star will appear in the upcoming Coco Crush campaign directed by Mario Testino and set to be released in fall 2016. In the past, Keira has appeared in campaigns for Coco Mademoiselle perfume and the Rouge Coco lipstick collection. In the promotional image released recently