A stunning diamond tiara made by Cartier in the 1930s from the Estate of Mary, Duchess of Roxburghe – granddaughter of Rothschild heiress Hannah and British Prime Minister the Earl of Rosebery
An Art Deco geometric treasure, it is set with circular-cut diamonds and topped by a series of 31 collet-set diamonds.
Born in 1915, Mary was the daughter of the Marquess of Crewe and his second wife, Lady Peggy Primrose. She was named after her godmother, Queen Mary. In 1935, she married George “Bobo” Innes-Ker, the 9th Duke of Roxburghe. Society life rolled on as usual for the couple, including a role for the Duchess as a trainbearer to Queen Elizabeth at the 1937 coronation, until 1953. Eighteen years after their marriage, her husband abruptly
tried to have Mary evicted from Floors Castle, his ducal seat. Thus began a marital feud that lasted six long weeks, Mary refusing to leave the castle while the Duke shut her out of as many amenities as he could, including telephone, electricity, and gas. She survived with the help of sympathetic neighbors including the Earl of Home, future prime minister, who stepped in to negotiate an end to the standoff. The Duchess of Roxburghe was granted a divorce in London.