Perhaps the most famous of the UK royal opals was the parure which Queen Victoria owned and which she left to the crown.
According to what we know, the parure consisted of the Oriental circlet tiara, a necklace, pendant earrings and a brooch.
Today the parure is mostly associated with Queen Elizabeth the Queen Mother whose signature jewels they were for many years.
Queen Victoria
Even after Prince Albert's death the Queen continued to wear the tiara for Drawing rooms and other grand functions.
According to Twinning, Queen Alexandra had rubies substituted for the opals, and it is in this format that we are most familiar with the jewels.
Queen Elizabeth the Queen Mother wearing the parure.
QEII wearing the necklace, brooch and earrings