what about other items
what necklaces are there
long pearl necklace
lomg diamond reviere
short pearl necklace
emerald necklace
yellow diamond necklace one more photo
small ruby diamond necklace
3 row pearl necklace
multi colour necklace
art deco diamoand necklace
The long diamond riviere towards with diamond earrings belongs to Fleur de Lys parure. As I remember this piece was worn by QS only twice (at Danish wedding & Pavlos of Greece pre wedding gala).
As I know there is only one big pearl necklace which Queen Sofia sometimes "pins" under her hairdoo to make it shorter (you can see this trick at some photos). It was given to her by countess of Barcelona who had inherited four row big pearl necklace from Q Ena and than remodeled it to single necklaces and shared between Q Sofia, infanta Pilar, infanta Margarita and herself (later inherited by infanta Elena).
The emerald demi parure was an anniversary gift from King JC and besides necklace it consists of bracelet and earrings.
The ruby necklace comes from countess of Bracelona demi parure, there are also bracelet, two brooches, earrings and two clasps (worn by Letizia at Fred&Mary wedding).
Unfortunatelly I don't know anything about other necklaces you asked.