Princess Françoise's turquoise and diamonds set it was Queen Olga of Greece's.
In princess Françoise son's memoirs (Prince Michael of Greece's "Memoires Insolites"), the Prince writes that his father, Prince Christopher, being the youngest child, in the share of his mother's jewels, he received the semi-precious ones, turquoises. The older brothers got the emeralds, the rubies, the diamonds and pearls, etc.
It is possible, as Cristina says, that one of Queen Sofia of Spain's turquoises set belonged to her grand-mother, Queen Sophia of Greece.
I think that once I saw Queen Anne-Marie of Greece wearing turquoises jewels, but I have no photos available. I think it was at a Scandinavian wedding and she was wearing an outfit in the turquoise tones. I do not remember which wedding, but I think it was a long dress with a jacket and her impressive earrings were turquoises.
--Previous Message-- : The turquoise parure may be the one worn by : Princess Francoise, wife of Prince : Christopher. There is a frequently seen : photo of Princess Francoise wearing a very : complete turquoise parure. :