Princess Laurentien of the Netherlands wears Queen Emma’s Diamond Tiara and Princess Mabel of Orange-Nassau wears her diamond wedding tiara at the wedding of Crown Princess Victoria of Sweden, June 2010; learn more about Laurentien’s tiara over here and Mabel’s tiara over here!

(And psst — there’s a third tiara surprise hidden in the background! That’s Alexandra of Sayn-Wittgenstein-Berleburg wearing her mother’s Floral Birthday Tiara!)