|The Swedish Aquamarine Kokoshnik Tiara|
|Princess Margaretha at Victoria's wedding|
Is this a favorite aquamarine tiara for you?
Update: Princess Christina, Margaretha's sister, wore this tiara for an official dinner in March 2014. There was some speculation that the King might have bought the tiara back from Margaretha at some point; true or not, use by other royals could indicate that the tiara is in the larger family collection now.
Photos: Getty Images/ANP/Sjoberg Bild/Scanpix