Info: Queen Elizabeth, The Queen Mother’s engagement ring(s). During the engagement period, Elizabeth let it slip that she would be receiving a sapphire, her favorite stone. That was the only interview she gave in her long life.
Also, rumor has it that the sapphire could be a Montana sapphire, since the Crown was an investor in one mine.
The third photo shows the pearl and diamond ring she wore in lieu of her sapphire during her long widowhood, she began wearing it mid 50s.
Stone(s): Blue Sapphire, Diamond, Pearl