Kate Middleton chose Queen Mary's Lover's Knot tiara and a yellow Elie Saab gown for the Oman state banquet at Windsor Castle alongside Prince William.
https://www.foxnews.com/entertainment/kate-middleton-brings-back-princess-diana-famous-tiara-glamorous-night-prince-william
https://www.foxnews.com/entertainment/kate-middleton-brings-back-princess-diana-famous-tiara-glamorous-night-prince-william