The Duchess of Cambridge has wowed us once again in her latest outfit, after appearing in Prince Charles' 70th birthday portraits in a stunning polka dot dress.

And eagle-eyed royal fans may just recognise it – particularly if you watched the live coverage of Prince Harry and Meghan Markle's wedding back in May...

Kate chose a pleated crepe de chine navy and white polka dot midi dress by designer Alessandra Rich for the family photos released last night in honour of the Prince of Wales' big birthday.

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And it looks like Kate's fashion choice could have been inspired by one of the celebrity guests at the Duke and Duchess of Sussex's royal wedding: Meghan Markle's former Suits co-star Abigail Spencer was pictured arriving in the very same dress!

Prince Harry Marries Ms. Meghan Markle - Windsor Castlepinterest
Pool/Samir Hussein//Getty Images

That said, Kate may also have taken style inspiration from her younger sister, Pippa Middleton, who chose a similar design by Alessandra Rich for Prince Louis' christening in July.

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DOMINIC LIPINSKI//Getty Images

While Kate's polka dot dress is sadly no longer available to buy, it's fair to say she has inspired us to give the print a go ourselves and, luckily, the shops are bursting with affordable alternatives.

Here are a few of our favourites...

L.K. Bennett polka dot dresspinterest
L.K. Bennett

BUY HERE Mortimer Navy Polka Dot Silk Dress, L.K. Bennett, £325

Marks & Spencer polka dot dresspinterest
Marks & Spencer

BUY HERE M&S Collection Spotted Half Sleeve Tea Midi Dress, £39.50

ASOS polka dot dresspinterest
ASOS

BUY HERE ASOS DESIGN Mono Mixed Spot Twist Front Dress, £38

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