The Stuart Sapphire

The Stuart Sapphire (Royal Collection)

Among the numerous glittering gemstones affixed to Britain's Imperial State Crown, one of the largest is a vivid blue gemstone with a fascinting, muddled history: the Stuart Sapphire.

The Daily Diadem: The Cambridge Sapphire Tiara

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Queen Mary of the United Kingdom wears the original Cambridge Sapphire Parure Tiara in a portrait, ca. 1920s; read more about the suite over here!

Jewels in Motion: The Crown of Eric XIV

The Crown of King Eric XIV of Sweden

The final installment of our month-long look at crown jewels of Europe glittering in motion focuses on a grand Scandinavian crown that is no longer worn: the crown of King Eric XIV of Sweden.

The Daily Diadem: Queen Marie Amelie's Sapphire Parure Tiara

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The tiara from the sapphire and diamond parure that once belonged to Queen Marie Amélie of France is displayed at the Louvre in Paris, June 2016; the tiara, which dates to the early nineteenth-century, was later owned by Marie Amélie's descendants, the Counts and Countesses of Paris, until it was purchased by the Louvre in 1985

Princess Kako's Tiara

TORU YAMANAKA/AFP/Getty Images

Our coverage of the tiaras worn by the women of Japan's imperial family continues today with one of their newest sparklers: the diamond fleur-de-lis tiara worn by Princess Kako of Akishino, a granddaughter of Emperor Akihito.