Keira Knightley has been announced as the new face of Chanel's Coco Rush jewellery campaign.

Keira Knightley chanel's Coco Rush campaign

Keira Knightley chanel's Coco Rush campaign

The 31-year-old 'Pirates of the Caribbean' actress - who has fronted campaigns for the luxury designer brand's Coco Mademoiselle fragrance commercials as well as their beauty adverts for Rouge Coco collection - has been chosen to helm the fashion house's Autumn/ Winter 2016 advert for their fine accessories capsule.

The brunette beauty posed for the 61-year-old fashion photographer Mario Testino, who captured Keira donning an all black ensemble clad in intricate pieces, including a chunky bangle, beaded necklace and delicate rings as she poses on a chaise longue in the upcoming commercial.

Meanwhile, the mother of one - who has 13-month-old daughter Edie with her musician husband James Righton - has donated some of her glamorous dresses to charity as part of the new programme Wardrobes for Women, which aims to help ladies in war-torn countries to rebuild their lives.

Speaking previously about the charity work, she said: "It's a pity when beloved clothes sit dormant in my closet, so I am thrilled to be a part of Wardrobes for Women to give these clothes a new life."

The brunette beauty has parted ways with a gorgeous blue and white gown from Prada and can't wait to give it a new home after they remained unused in her wardrobe for a long time.

She explained: "I love the simple elegance of this silk Prada dress, I wore it to a friend's birthday and it made me feel like a dream, I hope whoever ends up with this item will love it as much as I have."

And Keira isn't the only actress rummaging through her glamorous wardrobe for the charity, as Emma Watson, 25, has also jumped on board the programme to raise funds.

She explained: "These So Kate Louboutin heels were my go-to for many special occasions.

"I hope the new owner makes them a signature staple in their wardrobe and feels great every time they wear them."