Boucheron Harcourt Tiara. Gold, silver and diamond tiara, the base and top outlined by channel-set diamonds enclosing a continuous line of ribbons, the space between filled with seven emeralds with rectangular cut corners within open oval frames graduated in size towards the back. These are surmounted by groups of collet-set diamonds and supported below by leafy sprays linking the emeralds The emeralds have been replaced. Boucheron, Paris 1900-1913. Go to source for further info.
Tiara of Archduchess Maria Anna Princess Royal of Hungary and Bohemia. A lever behind the tiara can adjust the height, and it can also be taken apart to make a choker, bracelets, and pins. It was made in Vienna by Moritz Hübner in 1903.
Hanover Tiara, 1830. Prince John George of Saxony (1869-1938), and worn by his first wife, Princess Isabel of Wurtemberg (1871-1904) and by the second, Princess Maria Immaculata of Bourbon-Sicily. Royal House of Hanover. Diamonds. Pearls. Tiara. Bling.