Kate Middleton Wore a Tiara and Glittering Red Dress for the State Dinner and Looked Regal as Hell

Kate Middleton knows how to rock a crown!

The Duchess of Cambridge arrived via Bentley to Buckingham Palace for her first State Dinner -- in honor of the president of China -- where she wore a red Jenny Packham gown and super sparkly tiara.

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The pearl and diamond accessory is called the Lotus Flower tiara, and it happens to be a favorite of Queen Elizabeth. It's only the third time Middleton has ever chosen to wore a tiara, according to Vanity Fair, because as we all know, the "people's princess" likes to keep her royalty on chill. Middleton first wore the tiara during her 2011 wedding to Prince William, and then again in December 2013.

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Middleton's color choice for her dress was also very important, according to Elizabeth Emanuel (via People), who co-designed her gown, because "red is very important as a statement in itself as it matches the color of the Chinese flag and it means good fortune."

The banquet appeared to go off without a hitch, and Middleton looked completely on point for the diplomatic dinner.

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Meanwhile, the Duke and Duchess look more in love than ever! The two couldn't keep their eyes off each other at the 2015 Rugby World Cup opening ceremony in Twickenham, England, in late September.

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However, it seems Middleton might have to play matchmaker these days, as her sister, Pippa, recently split from her boyfriend, Nico Jackson, whom she had dated for three years.

Watch the video below.