This diadem is one of seven pieces in a parure, a set of jewels designed to be worn together, created in 1856 to celebrate the coronation of Tsar Alexander II. The parure
Comb (part of a set) | French, Paris | The Metropolitan Museum of Art
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7 of Queen Elizabeth & the Royal Family's Most Stunning Jewelry Parures
Danish Ruby Parure | Johns Creek, GA Patch
Joseff of Hollywood Parure, ca. 1940 | Antiques Roadshow | PBS
The Queen's Reign in Jewels: the Aquamarine Parure – Royal Central