Borrowed Jewellery: Diamond Rose Brooch

A few years ago princess Mathilde was seen wearing a diamond rose brooch ...

At the 60th birthday of the prince of Wales in London (2008):

At the King's Feast in Brussels (2008):

And at the wedding of prince William of Wales and Catherine Middleton in London (2011):

However this diamond brooch does not belong to Mathilde. It's a loan from Belgian jeweller Wolfers.

The brooch is described as a "trembling brooch", i.e. with some of the diamonds mounted on little springs. They move slightly with the movements of the person, which multiplicates the glittering effect.