23/02/2015 06:10 GMT | Updated 20/05/2015 06:12 BST

Oscars 2015: Best Dressed List

Oscars night is the final opportunity of red carpet season for Hollywood's stars to dress their best - and confirm their status as major fashion forces. So, which leading ladies got their look just right at the most glamorous event of the year?


Julianne Moore in Chanel

There's rarely a moment when the Best Actress winner doesn't look fabulous. The Still Alice actress collected her Academy Award in this intricate Chanel design handmade for her by Karl Lagerfeld and his team.


Rosamund Pike in Givenchy

Talk about radiant in red. The Gone Girl star (who had a baby boy in December) chose this curve-hugging lace gown - and no doubt wowed every single person she walked past on the red carpet.


Margot Robbie in Saint Laurent

This dress wasn't as dazzling as some, but Margot embraced effortless elegance in this plunging dress. Red lipstick and side-swept cropped hair completed the Wolf of Wall Street star's Oscars look perfectly.


Keira Knightley in Valentino

Throughout awards season, mum-to-be Keira has dressed her baby bump beautifully and Oscars night was no different. She wore a stunning design from Valentino's S/S 15 couture collection complete with embroidered flowers and scribbled notes.


Emma Stone in Elie Saab

This mustard shade isn't an easy colour to wear, but Emma's sparkly style risk paid off. We loved her glossy, curled crop and peachy lipstick, too.


Lupita Nyong'o in Calvin Klein Collection

This pearl-embellished gown was designed especially for Lupita by Calvin Klein Collection's Francisco Costa. One word: stunning.


Sienna Miller in Oscar de la Renta

The British star was one of the first to wear a design from Peter Copping's first collection for Oscar de la Renta. Sienna, who has just made her return to Broadway, looked beautiful in this classic colour combination - black and navy.


Gwyneth Paltrow in Ralph & Russo

Love it or hate it, we have to admire Gwyneth for making a statement in this fitted rose gown. The floral embellishment on her shoulder was far from a safe choice, but she pulled it off gracefully with sleek, straight hair and sparkling ruby earrings.


Reese Witherspoon in Tom Ford

Reese proved sometimes simple style is best in this beautiful monochrome gown. Diamonds were the only accessory needed to complete this classic look.

Love these dreamy dresses? Don't miss all the style highlights from this year's Oscars in our red carpet round-up below: