Katherine Heigl, Cameron Diaz and Cate Blanchett ruled the red carpet at the Oscars on Sunday night.

Katherine wore a stunning, one-shouldered red gown by Escada, paired with Ryan Ryan jewels. Cameron took a more subtle route, with a strapless Dior dress featuring intricate pleating. She accessorized with a pair of gorgeous Bulgari earrings. And mom-to-be Cate wore an amethyst colored dress by Dries Van Noten, with an empire waist that showed off her belly nicely.

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