The actress made her glamorous entrance at the venue in Santa Monica, California in the sexy polka-dot frock.
Her form-fitted gown hugged her figure beautifully and flaunted her slender curves.
Emilia looked seriously seductive despite the long-sleeved attire hiding her womanly assets.
She added a touch of Hollywood chic to her classy ensemble with a pair of peep-toe heels.
However, she decided to keep her accessories to a minimum, wearing only a few rings and a pair of earrings.
Emilia, 31, wore her blonde tresses in a stylish up-do and swept her fringe to the side to frame her petite face.
The beauty’s pretty eyes were highlighted with winged eyeliner and lashings of mascara.
On the red carpet, Emilia exuded confidence when she pulled a series of sultry expressions while posing for photographers.
At on point, the English stunner was joined by fellow actress and producer Reese Witherspoon, 41.
Reese put on an equally fashionable display in a low V-neck dress which stopped just before her knees.
The frock drew attention to the star’s slim waist as the garment featured delicate beading across the centre.
The mother-of-three, wore her hair wavy and let it drape across her shoulders for the annual award show.
Reese was nominated for Best Actress in a Movie Made for TV or Limited Series award for her role in Big Little Lies.
Her, Jessica Biel, Alana Boden, Carrie Coon and Jessica Lange were beaten by esteemed actress Nicole Kidman.
Emilia, however, was beaten by Ann Dowd for the Best Supporting Actress in a Drama Series award.
She and Ann were in the category with Gillian Anderson, Cush Jumbo, Margo Martindale and Chrissy Metz.