Kate Middleton just wore her most daring dress yet

(Image credit: Gareth Cattermole/Getty Images f)

Last night saw the royal premiere of Top Gun: Maverick in London, with Tom Cruise and Jennifer Connelly flying straight over from the Cannes film festival to present their latest movie.

Also in attendance were of course Prince William and Kate Middleton, who, after wowing us with her garden party outfit, stunned in her most daring look to date.

The Duchess of Cambridge opted for an off-the-shoulder black column dress with white trimming at the top, which perfectly matched husband William's tuxedo and shirt combo.

She wore her hair straight and down, accessorising with a pair of dangling diamond star earrings.

LONDON, ENGLAND - MAY 19: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge with Tom Cruise arrive for the Royal Film Performance of "Top Gun: Maverick" at Leicester Square on May 19, 2022 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

As royal protocol dictates demure looks, this is one of Kate's most daring outfits, likely deemed appropriate as it was an evening event.

Naturally, she sent searches for 'Roland Mouret black and white dress' soaring within minutes of being photographed at the premiere, but fans who'd like to copy her look will be disappointed to hear that the exact dress has now sold out.

ROLAND MOURET Cutout two-tone stretch-crepe gown - £585 at The Outnet

ROLAND MOURET Cutout two-tone stretch-crepe gown - £585 at The Outnet
This dress is now a whopping 70% off at The Outnet, a relative bargain if you have a few black tie events to attend.

Roland Mouret Harlow colour block asymmetric dress - £1,959 at Farfetch

Roland Mouret Harlow colour block asymmetric dress - £1,959 at Farfetch
This asymmetric dress is very similar to the one Kate wore, and by the same designer too.

SELF-PORTRAIT Off-shoulder jersey midi dress - £320 at MyTheresa

SELF-PORTRAIT Off-shoulder jersey midi dress - £320 at MyTheresa
Feminine draping makes this timeless midi dress from Self-Portrait an alluring evening choice. Made from comfortable jersey to a figure-hugging silhouette, it features an off-shoulder neckline and a high slit on the front.

Who What Wear OFF THE SHOULDER DRESS - Jumper dress - £105 at Zalando

Who What Wear OFF THE SHOULDER DRESS - Jumper dress - £105 at Zalando
A perfect affordable and versatile option.

However, I've found some great alternatives for you, including a past season gown from Roland Mouret that's remarkably similar, as well as some more affordable alternatives.

Penny Goldstone

Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.

Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).

Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.

However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.

Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.