The Duchess of Cornwall wears the Delhi Durbar Tiara at a banquet at Buckingham Palace to mark the centenary of Norway’s independence, 25 October 2005

Princess Marina, Duchess of Kent wears the original Cambridge Sapphire Tiara while departing Kensington Palace en route to a ball at Windsor Castle in honor of Princess Alexandra and Angus Ogilvy, 1963

The Duchess of Gloucester, who celebrates her 70th birthday this week, wears Queen Mary’s Honeysuckle Tiara at a Guildhall banquet for the President of Singapore, 22 October 2014