Margot Robbie Stuns in Plunging Oscars 2015 Gown With Brand New Haircut: Photos

Margot Robbie looked gorgeous at the 2015 Oscars. Credit: Kevin Mazur/WireImage

She got their focus, alright! Focus star Margot Robbie stole the show on the red carpet outside of Los Angeles' Dolby Theatre on Sunday, Feb. 22. 

The Australian beauty, 24, turned heads at the 87th Annual Academy Awards, stunning in a gorgeous Saint Laurent gown. 

The floor-length number showed off Robbie's ample cleavage with its deep plunging neckline, and gathered at the midsection to highlight her small waist. The dress also featured flowing sheer sleeves and a loosely pleated skirt that created volume as she walked the carpet. 

Robbie debuted a gorgeous new haircut at the show, chopping her shoulder-length hair into a blunt bob. She wore her newly cropped blonde locks parted deeply to the side, and went simple and classic with her beauty look for Hollywood's biggest night, accentuating her eyes with black mascara, and adding a pop to her matte face with a red lip. 

The Wolf of Wall Street actress paired her gown with an eye-catching statement necklace by Van Cleef & Arpels. "It's worth more than my life," Robbie joked on the E! red carpet pre-show of the jewels. 

"It was created for the Duchess of Windsor or something in the '30s," she added. "I am very lucky to be wearing it." 

While she isn't up for any honors at the 87th Annual Academy Awards, Robbie and Miles Teller announced the winners of the Academy Awards for Technical Achievement in a ceremony earlier this month. Next week, she will hit theaters opposite Will Smith in Focus