Once again, the royal sported the Lover’s Knot Tiara, often cited as a favorite of Diana, Princess of Wales, and frequently worn by Kate when in full princess mode. As for her diamond earrings? They previously belonged to Queen Elizabeth II, who received them as a wedding gift from her parents, King George VI and Queen Elizabeth. Both pieces were designed in the 1910s—the tiara by Garrard, the earrings by Cartier—but Kate, as ever, found a way to make them feel timeless.