Kate Middleton channels Princess Diana in $2,675 dress — but here's how to shop the trend for less

Catherine, Duchess of Cambridge, visits the D-Day exhibition at Bletchley Park on May 14, 2019 in Bletchley, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

Kate Middleton stepped out on Tuesday in a gorgeous - but pricey - navy polka dot dress complete with the sweet Peter Pan collar.

The Duchess opted for an Alessandra Rich outfit for a solo outing at Bletchley Park, a historic site where Alan Turing and computer scientists worked, to mark the 75th anniversary of the D-Day landings.

This is the second time we’ve seen her in the pretty frock - Kate previously wore the look for Prince Charles’s birthday portraits last year.

Eagle-eyed viewers of the royal family’s sartorial choices were quick to note that the polka dot look channeled a similar iconic dress that Diana favoured, complete with a matching white collar. Diana’s look had shoulder pads (it was the ‘80s!) but overall, the dresses are remarkably similar.

LONDON, UNITED KINGDOM - OCTOBER 06: Diana, The Princess Of Wales, At Home In Kensington Palace (Photo by Tim Graham/Getty Images)

Retailing for $1,985 USD ($2,675 CAD), Kate’s Alessandra Rich outfit is definitely a high end item - but it’s easy to incorporate polka dots into your spring look without the royal price tag

Polka Dot Midi Skirt

Polka Dot Midi Skirt

Internationally renowned for her line of traditionally-inspired clothes and accessories, Ranna Gill creates energetic pieces that continue to test the boundaries of fashion.

SHOP IT: Anthropologie, $140

Polka Dot Jumpsuit

Polka Dot Jumpsuit

This breezy spotted jumpsuit is cinched with a matching sash to define the waist.

SHOP IT: Nordstrom, $88

Polka Dot Belted Fit-&-Flare Dress

Calvin Klein - Polka Dot Belted Fit-&-Flare Dress

Chic fit-and-flare dress with contrasting polka dot print.

SHOP IT: The Bay, $170

Long-Sleeved Printed Blouse

Long-Sleeved Printed Blouse

Button-down collar, button closure at front, puffy sleeves and an all-over dot pattern.

SHOP IT: Frank and Oak, $80

Polka-Dot Mesh Trapeze Dress

Karl Lagerfeld Paris, Polka-Dot Mesh Trapeze Dress

A chic dress with allover embroidered polka-dot and mesh overlay.

SHOP IT: The Bay, $90 (originally $140)

Polka Dot Pleated Midi Skirt

UO Fallon Polka Dot Pleated Midi Skirt

A must-have midi skirt of your vintage style dreams, by Urban Outfitters.

SHOP IT: Urban Outfitters, $60

Flutter Sleeve Dress

Modcloth, Flutter Sleeve Dress, Regular & Plus

Bright and colorful polka dots, along with fluttery ruffles, add a touch of whimsy to this swingy work-to-weekend dress.

SHOP IT: Nordstrom, $110

Polka Dot Blouse

Padme Polka Dot Blouse

The timeless print on this blouse makes it the perfect match for your favorite chinos or indigo jeans this spring.

SHOP IT: Anthropologie, $100

Long Sleeve Chiffon Midi Dress

Eliza J, Long Sleeve Chiffon Midi Dress

Peppy polka dots add undeniable retro appeal to this gauzy chiffon midi dress.

SHOP IT: Nordstrom, $240

Slim Fit Polka Dot Jersey Sleeveless Dress

Lauren Ralph Lauren - Slim Fit Polka Dot Jersey Sleeveless Dress

Allover polka dots give this ruched jersey dress a vintage-inspired sensibility.

SHOP IT: The Bay, $120

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