Kate Middleton Wears Princess Diana's Diamond and Pearl Tiara Again

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John Stillwell - WPA Pool/Getty Images

Kate Middleton has topped off her look with Princess Diana's tiara again! 

The Duchess of Cambridge dazzled at the state banquet for King Willem-Alexander and Queen Maxima of the Netherlands at Buckingham Palace on Tuesday. 

The royal donned a powder blue gown from Alexander McQueen, adorned with the pearl-and-diamond Lover's Knot tiara, teardrop pearl earrings and matching necklace previously worn by the Queen Mother, Queen Elizabeth II's mom, reported by a royal expert. The piece is originally from Queen Alexandra's collection -- a gift from husband King Edward VII in honor of their 1863 wedding, according to From Her Majesty's Jewel Vault

She finished off the regal look with the Royal Family Order, a yellow ribbon and badge of a portrait of the queen. 

Kate Middleton in Princess Diana's tiara
John Stillwell - WPA Pool/Getty Images

The mom of three walked alongside Rear Admiral Ludger Brummelaar, while husband Prince William accompanied British Prime Minister Theresa May. 

Kate Middleton in Alexander McQueen
John Stillwell - WPA Pool/Getty Images
Prince William at state dinner
John Stillwell - WPA Pool/Getty Images

The Cambridge Lover's Knot tiara was famously worn by Middleton's late mother-in-law. It was originally designed for Queen Mary and was eventually passed down to Queen Elizabeth, who often loaned it to Princess Diana. 

Princess Diana in Lover's Knot tiara

Princess Diana in a Catherine Walker dress in Nov. 1989, in Hong Kong.

Tim Graham/Getty Images

Middleton has actually worn the beloved tiara three times before, for the Spanish state visit in 2017, the annual diplomatic reception in 2016 and for the same event in 2015. 

Kate Middleton in Lover's Knot tiara in 2017
Max Mumby/Indigo/Getty Images
Kate Middleton in Lover's Knot tiara in 2016
Max Mumby/Indigo/Getty Images
Kate Middleton in Lover's Knot tiara in 2015
Mark Cuthbert/UK Press via Getty Images

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