While browsing through Greek photographic archives, I discovered a little gem: a very patriotic copy of the photo showing Princess Andrew of Greece, née Alice of Battenberg and mother of the Duke of Edinburgh, wearing her wedding necklace as a tiara:





The only other (known) sighting of this jewel was at her wedding, when she wore it as a necklace:



Ella Kay of The Court Jeweller suggests that it was a wedding gift, which does seem likely.

Does anyone know more about it?

Perhaps it was actually the tiara broken up to make The Queen's Wedding bracelet?





http://www.thecourtjeweller.com/2015/10/jewel-history-now-married-three-times.html


As a matter of fact another similar postcard shows Alice (with two of her daughters) wearing an intriguing head-jewel, which I don't think we have discussed before: