The duchess looked radiant in an all-white coat dress courtesy of Alexander McQueen, which she paired with rose gold aspen earrings from Robinson Pelham and blush suede pumps from Aquazzura. She also carried her vintage Josef micro-beaded clutch.
But the best part of the ensemble was Middleton's nod to her late mother-in-law. The Duchess of Cambridge wore a three-strand pearl bracelet that once belonged to the Princess of Wales. People noted that “Diana wore the piece on several occasions, including her pearl-embroidered "Elvis" dress that she sported during a 1989 visit to Hong Kong.” The sentimental jewelry can be seen on Middleton's left wrist in the second image of the slideshow.