Brazilian Aquamarine Tiara and Necklace, presented to Queen Elizabeth II by Brazil in Very interesting webpage. British Royal and Noble Tiaras featuring tiaras worn by the children and grandchildren of HM Queen Victoria.
The largest known pink diamond, the most celebrated diamond in the Iranian Crown Jewels, and one of the oldest diamonds known to man; the Darya-i-noor is a pale pink, table or taviz-cut diamond with a name that means "River of Light".
Empress Farah Pahlavi of Iran is the former Queen and exiled Empress of Iran. She is the widow of Mohammad Reza Pahlavi, the Shah of Iran, and the only person to hold the office of Empress since pre-Islamic times.
This tiara formerly belonged to Empress Joséphine, and is now owned by Van Cleef & Arpels. They loaned it to Princess Grace for the "Century Ball" in Monaco in 1966 along with the rest of the jewels she wore that evening.