Kate Middleton wears her first tiara in nearly 3 years for a Buckingham Palace banquet.

Princess of Wales hosts South Africa's president at King Charles III's first state banquet.

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Princess of Wales Kate Middleton makes her tiara debut.

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The 40-year-old royal wore her first tiara in three years for Tuesday's state banquet. The meal welcomed South African President Cyril Ramaphosa to the U.K. during King Charles III's first state visit.

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Princess Kate wore a Jenny Packham gown and Queen Mary's Lover's Knot tiara.

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Princess Diana loved the pearl-and-diamond tiara, too.

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The Court Jeweller says Queen Mary commissioned the beautiful sparkler from Garrard in 1913 or 1914. It's a duplicate of Mary's grandmother's tiara, Princess Augusta of Hesse.

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Kate donned Princess Diana's earrings for Remembrance Sunday and Queen Elizabeth's bracelet. She wore the Royal Family order and Dame Grand Cross of the Royal Victorian Order star and sash.

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