Tiara of Marie Bonapart, Cartier, 1907, diamonds, platinum, consisting of twin pave set diamond olive branches meeting at a pear shaped diamond in the centre. The neo-classical tiara was particularly suitable for Marie Bonaparte (1882-1962) for it evoked the tiaras worn by the Bonaparte women during the First Empire of Napoleon I. As if to emphasises her background Princess Marie wore her tiara low on the brow just as the Empress Josephine had done. http://www.diamonddivas.be/index.php?id=37
DUCHESSE d'ANGOULÊME EMERALD AND DIAMOND TIARA Exceptionally rare as it survived the French Revolution, Restoration and both installations of the Empire. The tiara was commissioned by the duc d’Angoulême, made by the Brothers Bapst, who created this “masterpiece of early 19th jewelry". The tiara actually curves up in the center to fit the contour of the wearer’s head. A tiara with ergonomics. Lavish. It is now in the Louvre Museum in Paris.
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.