The top one in your set of 2 pics is, very clearly, the very impressive Brancanca tiara (which Queen Silvia used more recently during her eldest daughter's wedding * see added pic ) Hope that helps !
--Previous Message-- : : The image I posted has two pics labelled a : and b and I think RealGabo might have been : asking about the top one a . I don't : recognise that tiara. : Pic b on the bottom of the page is : certainly the Leuchtenberg.