Parties: Chanel Celebrates Its Brightest Gems

Chanel celebrated the 80th anniversary of its Bijoux de Diamants fine jewelry collection last night with a dinner in New York. Shining nearly as bright as the gems displayed were the gorgeous attendees, including Diane Kruger, Rose Byrne, January Jones, Jessica Paré, and brand ambassador Blake Lively—in her first official appearance as Mrs. Reynolds—all wearing ensembles by the French house. Click through to see more stars at last night's hottest events.

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