Carlos Alvarez/Getty Images |
Dona Isabel, Duchess of Braganza wears a diamond floral necklace set on a tiara frame at a state banquet for the Spanish royals in Guimaraes, November 2016
Sparkling Royal Jewels From Around the World
Carlos Alvarez/Getty Images |
Sean Gallup/Getty Images |
FRED DUFOUR/AFP/Getty Images |