Piaget has just released behind-the-scenes footage of Sienna Miller's shoot for the new campaign for Piaget Possession, and the clip offers an inside look at the actress as she poses in New York for renowned fashion photographer Raymond Meier. Miller's naturally gorgeous, of course, but she's quick to credit the line's classic gold chains and platinum bracelets with increasing her glamour quotient: "The jewelry, of course, is the star of the show," she says. "It's very classic but funky too. I think nowadays everyone has such great style so jewelry can really make [a look] more individual." Watch the footage from Miller's fabulous photo session above!