A 1930s’ Cartier diamond tiara is one of three vintage-style tiaras from the estate of Mary, Duchess of Roxburghe, set to go under the hammer at next month’s Magnificent Jewels and Noble Jewels Sale at Sotheby’s Geneva.

A 1930s’ Cartier diamond tiara is one of three vintage-style tiaras from the estate of Mary, Duchess of Roxburghe, set to go under the hammer at next month’s Magnificent Jewels and Noble Jewels Sale at Sotheby’s Geneva.