One of Kate Middleton's favourite designers is causing controversy around Meghan Markle's wedding dress.

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It was one of the most talked about topics in the lead up to the royal wedding – which designer would Meghan Markle choose to wear?

After months of never-ending speculation, we finally got the big reveal last Saturday when Meghan walked down the aisle to wed Prince Harry in a stunning long sleeve wedding gown designed by Givenchy’s creative director Clare Waight Keller.

But designer Emilia Wickstead believes the Duchess of Sussex’s £200,000 wedding dress is identical to one of her own gowns, priced at £7,000.

“Her dress is identical to one of our dresses,” Wickstead told Daily Mail, 

“Apparently a lot of commentators were saying, ‘It’s an Emilia Wickstead dress.'”

While many loved Meghan's elegant wedding look, designer Wickstead had nothing nice to say.

"If you choose a simple design the fit should be perfect. Her wedding dress was quite loose," she said.

She also didn't like Meghan's bridal hairstyle adding, "I was like, 'hold the wisps back – it's a royal wedding for God's sake.'"

A photo of the 'identical' wedding dress was posted on Emilia Wickstead's bridal Instagram two days ago, with many fans of Meghan's dress commenting on the post.

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A post shared by Emilia Wickstead Bridal (@emiliawicksteadbridal) on May 23, 2018 at 3:10am PDT

"Sure. Identical. Except for the neckline, sleeves, skirt, train & fabric. Other than that, splitting image of the Duchess’ dress," one commenter wrote.

Wickstead is a designer that Kate Middleton, the Duchess of Cambridge, wears frequently.

Meghan has also previously worn one of Wickstead's designs on Anzac Day last month.