Thank you very much, Maridje, for the lovely close-up of Queen Maxima; and also for the picture of Queen Juliana wearing the necklace, too.
This is when I miss John R's website most acutely! I don't know anything about this (clearly historic) necklace, could anyone provide information about its provenance, who has worn it in the Dutch royal family, etc.? I do recognize the enormous emerald drop (and its association with Queen Juliana, who wore it frequently).