Kate Middleton is once again proving that no one wears a tiara quite like the Princess of Wales. The royal, 43, reigned supreme in one of her most regal looks to date for a formal state banquet alongside husband Prince William at Windsor Castle welcoming President Donald Trump and first lady Melania Trump to the United Kingdom on Wednesday, September 17. Middleton was a vision in a couture silk crepe gown by British designer Phillipa Lepley paired with a hand-embroidered gold Chantilly lace evening coat and earrings that once belonged to the late Queen Elizabeth II.