Popsugar Fashion The Royals Kate Middleton White Dress at State Banquet 2019 How the Duchess of Cambridge Paid Tribute to Princess Diana and the Queen Mother at the State Banquet 4 June 2019 by Erin Cullum View On One Page Photo 1 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 The Duchess of Cambridge Wearing Princess Diana's Tiara and the Queen Mother's Sapphire Earrings at the State Banquet Previous Next Start Slideshow The RoyalsThe British RoyalsDressesKate Middleton