I do not know if Ashdean's suggestion is true, but Queen Frederika had a pair of large sapphire and diamond earrings, which looks very much like Queen Elena of Romania's (here worn by Queen Frederika at the re-opening of Madrid's Teatro Real in 1966):
and at Infante Felipe of Bourbon (now King Felipe VI)'s christening in 1968:
--Previous Message-- : Were the earrings not bought by(or for) Queen : Fredrika worn by her with the huge 438 karat : sapphire pendant... : : --Previous Message-- : She is wearing the Russian sapphire brooch : she inherited or was given by her : grandmother Queen Olga. It was a very large : cabochon sapphire. She sold it in the 1960's : as she was in financial difficulties : according to the reports of the time. Sorry : do not have access to the sales catalogue at : the moment : : --Previous Message-- : I wonder which stones encircled with : diamonds : are set in Queen Elena's earrings and : brooch. Are they sapphires, emeralds, : rubies, any idea? : Thanks in advance. : : : : : : :