Her extensive tiara collection, however, is one element of Queen Maxima's royal wardrobe that often goes overlooked. Here, ...

Vreda Esther Mary Lascelles often wore the Diamond Belt Tiara, which is part of a sizeable collection belonging to the ...

However, what really stole the show was Mary's emerald and diamond-encrusted tiara. The headpiece in question is the Danish Emerald Parure tiara – a jewel that is typically reserved for the queen.