The actress opts for a floral look at the 2015 Oscars.
The actress showcases a classy look at Vanity Fair's 2015 Oscars party.
That train!
The actress showcases a romantic look at the 2015 Golden Globes.
It may be wintertime, but that doesn't stop the mom-to-be from breaking out black-and-white florals for the AFI Awards.
Just before announcing her pregnancy, the British beauty looked elegant as always in a feather-trimmed cloque Simone Rocha dress.
This is how effortless elegance s done! Keira radiates in this willowy Giambattista Valli design at the 2014 Hollywood Film Awards.
She turns heads in an enviable Chanel Couture frock at The Immitation Game Los Angeles screening.
Whew! The actress is sharp in a velvety halter-neck Nina Ricci dress at the Governor's Awards.
Stella McCartney superhero-print pleated silk blouse, skirt & belt Toronto Film Festival
What a gent! Her Imitation Game co-star Benedict Cumberbatch shields she her (and her golden Valentino Couture gown) from the rain in London at the BFI London Film Festival.
In her go-to Chanel at TIFF, she's just as effortlessly beautiful as ever.
In a waist-cinching Chanel Couture frock and bold red Jimmy Choo pumps, the actress attends the 2014 Tribeca Film Festival closing ceremony.
Her monochromatic ensemble from Paris Fashion Week fall 2014 showcases her itty-bitty waist.
Here Keira matched her blue eyeshadow to her navy Chanel dress. She completed the look with a messy-chic updo.
The British actress recycled this sheer sleeved Chanel dress from her wedding and wore it to the 2013 SeriousFun London Gala.
Keira was a walking painting at the Toronto Film Festival in a Mary Katrantzou printed strapless dress.
Valentino definitely looks great on the actress especially in this stunning sleeveless gown which she accessorized with a red Chanel floral headband at a L.A film premiere.
Keira makes fashion look so easy in this custom Erdem strapless gown she wore at the Anna Karenina premiere in Los Angeles.
Keira's romantic navy long-sleeved lace gown by Valentino Couture looked chic with a side-parted tight bun.
The Anna Karenina star upped her elegant style in this gorgeous Elie Saab Couture sheer gown at the Toronto Film Festival.
Keira wore her fave brand, Chanel, to the London premiere of Anna Karenina in the brand's pink floral applique couture gown.
The Duchess premiere gives Keira a chance to show off her great style in an Alexis Mabille deep-blue dress with black tulle, Chanel jewelry and Moschino stacked pumps.
Understated yet stunning, Keira shows off a simpler look by Burberry Prorsum at the London premiere of A Dangerous Method.