After hosting a Christmas party for military families [1] at Kensington Palace, the Duke and Duchess of Cambridge made their way to Queen Elizabeth II's annual Diplomatic Reception [2]. For the celebrations, Kate wore a stunning tiara called the Lover's Knot [3] that belonged to Princess Diana. Kate looked like Disney's Cinderella in a baby blue bespoke Jenny Packham gown featuring sheer cap sleeves and sparkly sequin accents. She accessorised her gorgeous gown with Diana's Collingwood pearl earrings, which she has worn before. Read on to take a look at her ensemble.