That might very well be the case. After doing some more digging two more photos from the same event emerged. Sadly they are also quite blurry. But I add them here in any case:
--Previous Message-- : Yes, difficult to identify but I'm going with : the lovers knot tiara. It doesn't look like : the Vladimir to me and also I wonder given : that the Queen was sitting next to the : original owners grand-daughter might it not : be a little tactless of her to wear it on : this occasion? Yes, she could legitimately : wear it but I suspect she would have been a : little more tactful given that the events : which lead to the sale of the tiara were : relatively recent. : : --Previous Message-- : : I agree that the pic is a difficult one. : I go for the Vladimir with the drop pearls : hanging forward as her head is bent. : : :