Duchess Kate dazzles in Princess Diana's tiara for banquet with Spanish royals

The Duchess of Cambridge manages to turn heads anyway, but she definitely caught the eyes of those around her while driving to a Buckingham Palace banquet wearing a tiara that once belonged to her mother-in-law.

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The Duchess of Cambridge heads to Buckingham Palace for a banquet in honor of the Spanish state visit.

The former Kate Middleton and her husband, Prince William, attended a state dinner Wednesday evening that featured the entire British royal suite and led by Queen Elizabeth and Prince Philip.

Duchess Kate wore a light pink Marchesa dress with a plunging neckline partially covered by a Y-shaped diamond and ruby necklace, loaned to her from the queen.

But it was what she wore on top of her head that excited royal watchers. Kate donned the Cambridge Lover’s Knot tiara that once belonged to her husband’s mother, Princess Diana.

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Princess Diana wearing her signature Cambridge Lover's Knot Tiara.

Queen Elizabeth had given the pearl-and-diamond tiara as a wedding gift to Diana. But the late princess, however, had been known to complain that the weight of what became known as her signature headpiece gave her headaches.

Duchess Kate has donned a tiara less than a handful of times since she became a member of the royal family, starting with a glittering headpiece during her 2011 wedding to William.

The guests of honor during the latest occasion, Wednesday’s banquet, were Spain’s King Felipe VI and Queen Letizia, whose three-day visit marked the first time a Spanish king had visited the United Kingdom in more than three decades.

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