Truth: When Chanel throws a party, the A-listers show up in droves. Whether it's their high-drama runway shows, or last night's celebration of the Bijoux de Diamants "1932" collection, it's always a celeb-studded, highly curated affair. Blake Lively, Rose Byrne, Diane Kruger, Les Demoiselles de Karl (Jen Brill anyone?), and B.A.s (brand ambassadors) alike came out to fete the commemorative line, which marks the 80th anniversary of Chanel's exquisitely iced-out collection of diamonds, sapphires, and pearls.In honor of the shining event (literally — the carats were off the chain), we pulled together our favorite double-C pictures, featuring some seriously breathtaking frocks, and bijoux, bien sûr. Click through to "ooh" and "aah" over some of the best dinner party 'fits ever, and see if you can spot Blake's new bling.