Lea Michele in draped-back Marchesa, Kate Winslet in Elie Saab, and Modern Family star Sofia Vergara in Vera Wang were among the attendees wearing the siren colour of the night.
The event provided an end-of-summer excuse for full-on glamour. Other standouts were Claire Danes in a blue-sequinned gown by Oscar de la Renta, Christina Hendricks in Johanna Johnson and Glee's Dianna Agron in cobalt-blue Roksanda Ilincic. True Blood star Anna Paquin stayed loyal to her red-carpet favourite Alexander McQueen, while Gwyneth Paltrow split the jury with her crop-top and skirt ensemble from Emilio Pucci (thoughts?).
Off the red carpet, the night’s big winners were Winslet, who took home the Outstanding Lead Actress in a Miniseries award for Mildred Pierce, and Julianna Margulies, Outstanding Lead Actress in a Drama Series for The Good Wife.
Britain’s own Downton Abbey, which premiered its second season in the UK last night, also made an impact. Series creator Julian Fellowes won for Outstanding Writing, while Dowager Duchess of Grantham Maggie Smith took home the award for Outstanding Supporting Actress.
Modern Family, Boardwalk Empire and Mad Men also received accolades.
See the stars on the Emmy Awards red carpet
Up-do or down-do? Read our beauty writer's take on the event hair