The Sovereign’s ring has a blue octagonal sapphire in a gold setting overlaid with five rubies forming a cross representing the cross of St. George, as seen in the English flag. It was made for the coronation of William IV in 1831.

The Queen Consort’s ring, a ruby in a gold setting, was made for the coronation of King William IV and Queen Adelaide in 1831, and it has been used by three queens consort: Queen Alexandra, Queen Mary, and Queen Elizabeth, later called the Queen Mother.