Milford Haven Tiara, United Kingdom (1890; made by Bolin; rubies, diamonds, gold). Made for Grand Duchess Sophie, wife of Grand Duke Michael Mikhailovich. Inherited by Nadejda Mountbatten, Marchioness of Milford Haven.
Crown of Queen Christina, made for her mother. As her coronation and state crown Christina of Sweden used the crown that her mother Maria Eleonora of Brandenburg had used as the queen consort. It was made in Stockholm in 1620 and had arches in gold with black enameling and set with rubies and diamonds, with a small blue enameled orb and a cross, added a cap of purple satin, embroidered in gold, to the inside of the crown. The circlet of the crown has eight large rubies and diamonds.
A gorgeous art deco diamond tiara, by Cartier, 1930s, formerly the property of Mary Innes-Kerr, Duchess of Roxbrughe. http://en.wikipedia.org/wiki/Mary_Innes-Ker%2C_Duchess_of_Roxburghe To be auctioned at Sotheby's Magnificent and Noble jewels in May
The huge belle epouqe diamond tiara, 1903, by Cartier, for the Duchess of Manchester, Helen, nee Zimmerman, an American 'Dollar Princess'. Featuring a series of seven large, heart-shaped double scrolls, twisted at the base, then curling into upright motifs. Within each heart are three circular diamonds, and then topped with a pair of leaves and a larger diamond.