Will it be the Danish rubies or the Belgian diamonds?Chris Jackson/Getty Images, Sean Gallup/Getty ImagesThe Danish Ruby Parure Tiara vs. The Brabant Laurel Wreath TiaraChris Jackson/Getty ImagesThe Danish Ruby Parure TiaraThis tiara began its life as a series of hair combs, purchased by Jean-Baptiste Bernadotte for his wife, Desiree, to wear at Napoleon's coronation in 1804. When Bernadotte was