Diadem or tiara of diamonds, gold, and silver with 25 five-point stars, graduated in size, set "en tremblant," containing 502 brilliants, 60 rose cuts; the central diamond of the largest star is 21.60 carats. By Estevao de Sousa, Lisbon, 1863-1866. Commissioned by Queen Maria Pia of Portugal (1847-1911). Both loaned by the National Palace of the Ajuda Museum, Lisbon.