The Andamooka Opal is a famous opal that was presented to Queen Elizabeth II in the on the occasion of her first visit to Australia. It was discovered in Andamooka, South Australia. The opal was cut and polished by John Altmann to a weight of 203 carats.
From Her Majesty's Jewel Vault: The Queen Mother's Pearl of the Dee Brooch. As a gift to mark her birthday, the Salmon and Trout Association commissioned this brooch for Queen Elizabeth The Queen Mother from goldsmith Rachel Jeffrey.
The Brazilian Aquamarine and Diamond Tiara; circa created by Garrards. Shown in it's original form which consisted of three upright rectangular stones mounted on a simple platinum band. Worn by HM Queen Elizabeth II of England. (photo 1 of