Olivia Palermo
Olivia Palermo is a longtime partner of Piaget, having creatively directed pieces for the maison’s emblematic Possession range, which is what the best-dressed-list mainstay is pictured wearing. Founded in the Swiss village of La Côteaux-fées more than 140 years ago, Piaget is responsible for some of the most innovative timepieces available on the market today, but it is also known for its high jewellery craftsmanship, which took off during the 1960s and 70s under the watchful eye of a fourth-generation member of the family, Yves G Piaget.