Scarab Brooch
In 1966, the Duke of Edinburgh gifted this Scarab Brooch to his wife. The $50,000 brooch is made of yellow gold, rubies, and diamonds. Though it is not one of the most expensive pieces she owns, it is one that she treasures greatly.
Emerald Floral Brooch
The Queen Mother was frequently seen wearing stunning brooches, and one that she was seen wearing often was this emerald floral brooch, which is estimated to be worth about $75,000. Queen Elizabeth is the current owner of the brooch but Camilla has been seen wearing it as well in recent years.