From the RWMB the Queen has worn four collet necklaces; the longest was worn in the UAE in 2010 and also in New Zealand and Wales. I can not find a picture of the Wales wearing - perhaps in 2002.
--Previous Message-- : Which "Queen Elizabeth" (Queen : Elizabeth II or Queen Elizabeth the Queen : Mother?) are you refering to? And which : "collet necklace" (there are quite : a lot in the British royal collection...)? : : Queen (Mother) Elizabeth's collet necklace - : called "Queen Elizabeth's Coronation : Necklace" in Hugh Roberts' book The : Queen's Diamonds - was never worn by Queen : Elizabeth II, and was probably not worn in : Wales by the Queen Mother in 2002, as she : died in March that year. : : :