The royal family rolled out the red carpet for the Chinese President and his wife during tonight's state dinner at Buckingham Palace, and the Duchess of Cambridge chose to wear an ensemble that matched. With Prince William by her side in a dapper black tuxedo and white bowtie, the lady in red made a stunning appearance at her first state banquet—and we can bet that her outfit won't soon be forgotten.

For the historic occasion, Kate Middleton wowed in a sparkling floor-length custom Jenny Packham gown that featured cap-sleeves and accentuated her slim waist with a satin belt. She wore her hair in a chic updo, and finished off her regal look with a selection of jewelry and the beautifully detailed Lotus Flower Tiara that was borrowed straight from Queen Elizabeth II's personal collection.

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One thing's certain: the Duchess's look definitely took our breath away.