Zoe Saldana, in Valentino, with David Yurman jewels.Marion Cotillard, in Dior, with Chopard jewels and Dior shoes.Zhang Yuqi, in Ulyana Sergeenko Couture.Solange Knowles, in Stéphane Rolland Couture, with Chopard jewels and a Jimmy Choo clutch.Milla Jovovich, in Chanel Haute Couture.Julianne Moore, in Dior Haute Couture, with Chopard jewels.From left: Claire Julien, in custom Emilio Pucci; Taissa Farmiga, in Valentino; Katie Chang, in Dior; Israel Broussard; and Emma Watson.Fan Bingbing, in Elie Saab Haute Couture, with Chopard jewels.