Hariot Hamilton-Temple-Blackwood, Marchioness of Dufferin and Ava wears the family’s diamond and pearl shamrock tiara in a photographic portrait, ca. 1880s; the nineteenth-century sparkler is currently on loan to the Victoria and Albert Museum

Laura Parker Bowles, daughter of the Duchess of Cornwall, wears the family’s Cubitt Tiara at her wedding to Harry Lopes, May 2006; read more about the tiara over here!