Nicole Russell, Duchess of Bedford wears the family’s amethyst parure in a portrait taken at Woburn Abbey, ca. 1970; more on the jewels over here!

Lady Maud Carnegie (later the Countess of Southesk) wears the amethyst setting of Queen Alexandra’s Sapphire Tiara as she blows her nose during the 1937 coronation; the tiara, given to Alexandra her brother-in-law, Tsar Alexander III of Russia, was later sold by Maud’s descendants

The East of Paris Tiara, designed by Slim Barrett, is displayed ahead of its sale at Bonhams in London, November 2013; the petite coronet was famously worn by Victoria Beckham on her wedding day in 1999