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She made a statement in a mint green Balmainblazerand an ankle-length white pleated skirt.

She added a black Chanel clutch and black pumps to complete the ensemble.

Kate Middleton wearing a light blue dress with sheer sleeves and a matching hat with flower detailing

Getty Images / Samir Hussein

The dress sold out immediately and became Kate’s first iconic look as a royal-to-be.

She also accessorized with a pair of diamond and sapphire earrings that previously belonged to Princess Diana.

She pulled together the monochromatic moment with a blue clutch.

Kate Middleton wearing a white dress with long black gloves and gold earrings

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She paired the brightly colored look with a white clutch and Aquazzura heels.

She also wore an emerald and diamond choker that had belonged to Princess Diana.

Commonwealth Day Service Observance (2015)

During her pregnancies, Kate became known for hermaternity fashionmoments.

Kate Middleton wearing a pink blazer and trouser set with a white pearl belt

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She styled the look with emerald jewels loaned from Queen Elizabeth II.

She shimmered in a gold-embellished Jenny Packham gown paired with gold earrings.

The look was yet another stylish maternity moment.

Kate Middleton wearing a green blazer with a white pleated skirt

Getty Images /Karwai Tang

She finished off the look with a gold clutch and a pair of gold statement earrings.

She finished the look with a flower-adorned Philip Treacy hat and a gold clutch.

Here, she opted for an on-theme dress from Erdem, which she paired withespadrille wedgesand flower-shaped pearl earrings.

Kate Middleton wearing her Alexander McQueen bridal gown and veil at her wedding to Prince William

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She paired the dress with blue suede shoes and a navy clutch.

Princess Eugenie’s Wedding (2018)

Kate Middleton’s timelesswedding guest styleis a topic in itself.

She also pinned a maple leaf brooch to the dress in honor of the occasion.

Kate Middleton wearing a cream set with black detailing

Getty Images / Samir Hussein

She paired the style with a dark blue fascinator and a matching suede clutch and gloves.

Kate Middleton wearing a black top and pants with a camel wool coat and a black bag

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Kate Middleton wearing a long sleeve navy dress

Getty Images /Chris Jackson

Kate Middleton wearing a navy printed skirt and top with a blue hat and heels

Getty Images /Neil Mockford

Kate Middleton wearing a bright blue coat dress with a blue hat

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Kate Middleton wearing a yellow dress with a white clutch and white heels

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Kate Middleton wearing a pink metallic gown with a white clutch

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Kate Middleton wearing a lime green gown and emerald jewelry

Getty Images /Mike Coppola

Kate Middleton wearing a light pink coat dress with a light pink fascinator, nude heels, and clutch

Getty Images /Chris Jackson

Kate Middleton wearing embellished white gown with crown

Getty Images /Chris Jackson

Kate Middleton wearing a green off-the-shoulder gown with sparkly embellishments

Getty Images / Samir Hussein

Kate Middleton wearing a gold embellished cape dress and oversized earrings

Getty Images /Karwai Tang

Kate Middleton wearing a black and white polka dot dress with a black jacket and a black clutch

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Kate Middleton wears a blue and white polka-dot dress while posing for photos with Prince William and newborn Prince George

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Kate Middleton wearing green metallic midi gown with gold clutch and earrings

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Kate Middleton wearing a light blue long sleeve dress and tilted hat with flower detail

Getty Images / Karwai Tang

Kate Middleton wears a blue and white Breton stripe top, jeans, and sunglasses on head

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Kate Middleton wearing a blue, black, and white floral dress with espadrilles and flower earrings

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Kate Middleton wearing a purple bow blouse with black trousers and a light purple bag

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Kate Middleton wearing a blue and white polka dot dress and minimal jewelry

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Kate Middleton arriving at a gala wearing a black floral gown and carrying a black clutch

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Kate Middleton wearing a red and white dress with gloves and a dark purple Chanel purse

Getty Images / Samir Hussein

Kate Middleton wearing a fuchsia knee-length dress with a matching fascinator

Getty Images /Max Mumby/Indigo

Kate Middleton wearing a blue gown with a pearl necklace and crown

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Kate Middleton wearing a red dress with a maple leaf flag brooch

Getty Images / Chris Jackson

Kate Middleton wearing a light blue tailored dress coat with a navy fascinator

Getty Images /Karwai Tang

Kate Middleton on the red carpet wearing a light purple gown with a metallic clutch

Getty Images /Kevork Djansezian

Kate Middleton wearing a light pink sequined gown and open-toe heels

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