To mark the 20th anniversary of Piaget Possession, the luxury jeweler has named Sienna Miller the new face of the collection. The first campaign image features Miller in a simplistic look—white tee and black leather pants—appropriately adorned with layers of yellow gold necklaces, bracelets and rings from the iconic collection. Shot in downtown N.Y.C. by photographer Raymond Meier and featuring makeup by Gucci Westman and styling by Elissa Santisi, the 3-image campaign will continue to be released over the coming months. Check out behind-the-scenes video from the shoot and interviews with hair, makeup and Sienna herself on Piaget.com beginning May 17th.