History of Famous Jewels and Collections: Re: Edinburgh ruby parure (Versitile?)

At Sofia and Juan Carlos Pre Wedding , the Princess wore some elements at her necklace.Why not the ruby necklace ?
I started a thread of the Event . ( before them were Princesses Olga and Marina, most of their jewels were sold when they passed away)

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At some Greek Royal Events, I've seen Princess Margarita wearing a similar coronet-style tiara, with what seems like three-pronged leaf elements on top of a diamond base (not dissimilar to some Spanish Ducal Coronets)! I wonder if this is a different version of the Edinburgh Ruby Parure, or a different piece altogether! Maybe it burned down in the 1963 fire?