The week's best celebrity style: Olivia Wilde, Naomie Harris, Sienna Miller and more

Ladylike ensembles and fresh florals were the order of the hour this week. A-list beauties like Sienna Miller and the Duchess of Cambridge (nee Kate Middleton) dialled up the glamour in pretty patterns that featured a smattering of red, white and blue, while Olivia Wilde, Amal Clooney and Lea Seydoux were perfectly poised on the red carpet.

How appropriate of Sienna to choose a dress from Marc Jacobs's Spring/Summer 2016 collection for the premiere of Burnt when the designer's show took place at the Ziegfeld Theatre and models entered via a red carpet. The red-white-and-blue, Bohemian-inspired gown with an abstract floral pattern boasts an asymmetrical neckline and sheer black panels.

Also in the signature shades of the U.S.A? Duchess Kate across the pond, though the designer behind her ensemble for the 100 Women in Hedge Funds gala dinner was actually born in Canada. All eyes were on Kate in the orchid-printed Erdem gown, which featured an oversized ruffle around the hem and a fitted bodice. She accessorized with the Queen Mother's heirloom diamond-and-sapphire earrings, an Anya Hindmarch clutch and Jimmy Choo's Cosmic suede pumps.

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If you're in search of some inspiration on how to dress like a lady, look no further than Olivia's embellished Peter Pilotto dress, which proved that long sleeves and a midi hemline can still have sex appeal. Conversely, Amal proved just how polished a minidress can be in blush-pink Roland Mouret at the Hollywood premiere of Our Brand Is Crisis, lending her look at bit of edge courtesy of metallic accessories.

Bond girls Lea Seydoux and Naomie Harris were also no-brainers this week, as were Victoria Beckham in a coat from her namesake collection and Diane Kruger in a dark-and-stormy Jason Wu number.

See what all the stars were wearing by tapping the image and let us know your top picks on Facebook and Twitter!

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