Duchess Kate wears Princess Diana's tiara at state banquet with Spanish royals

  • Duchess Kate wears Princess Diana's tiara at state banquet with Spanish royals

Duchess Kate wears Princess Diana's tiara at state banquet with Spanish royals

But it was what she wore on top of her head that excited royal watchers.

Kate has worn the Cambridge Lover's Knot tiara on a few occasions over the years, usually to similarly dazzling events at Buckingham Palace.

During her speech, Kate remarked on how the museum is one of her children's favorite places.

Princess Diana wore the tiara in Italy in 1985.

The Queen herself looked gloriously regal as she posed for photos with the King and Queen of Spain and Prince Phillip, wearing a floor length embroidered white satin gown with a red bow, and blue jewels. The Duchess is clearly very fond of the tiara as she wore it at last year's state banquet, too.

Queen Letizia and Kate Middleton dazzle in family jewels at the Queen's state banquet
Kate Middleton stuns in Princess Diana's favourite tiara as she wore it with her most revealing gown yet [PHOTOS]

The floor-length dress - which was allegedly custom-made - featured a scalloped lace fabric, a plunging neckline and puffy bell sleeves.

However, Middleton has done her part to help Princess Diana's legacy live on by continuing charity work mainly with those who struggle with mental illness. These were her Collingwood pearl and diamond earrings that she received as a wedding gift and match perfectly with the tiara.

Presumably, the 35-year-old then performed the ol' dress switcheroo once she arrived - though we can't imagine she did it in the back of the auto like so many of us have attempted.

However, there was one accessory which distinguished her from the other royals in attendance: The sash.

Her tiara wasn't her only statement piece, either, with Queen Elizabeth's own King George IV and Queen Elizabeth Bandeau necklace on full display, a jaw-dropping diamond and ruby collar with a diamond drop pendant as its centerpiece. The low look also seems quite innocuous from the front, which makes for a fun pop of surprise when the Duchess of Cambridge turns around and shows off an intricate braid. Also, she is the Queen's granddaughter-in-law, not married to the Queen's sons like Diana was and now Camilla and Sophie are.