|Queen Marie of Romania wears the Vladimir Sapphire Kokoshnik (Library of Congress/Wikimedia Commons)|
|Queen Marie of Romania, ca. 1914 (Grand Ladies Site)|
|Queen Marie wears her diamond loop tiara, which was lost in Russia during the 1917 revolution|
|Grand Duchess Vladimir wears the sapphire kokoshnik in a portrait, ca. 1911 (Wikimedia Commons)|
|Queen Marie wears the sapphire kokoshnik, ca. 1920s (Library of Congress/Wikimedia Commons)|
|Queen Marie wears the tiara in a portrait by Philip de László|
|Princess Ileana of Romania (Wikimedia Commons)|
Note: This is an updated version of an earlier post, with new text/images.