Looking remarkably cheerful as she enjoyed the day's events in the grounds of Windsor Castle, the Queen was in her element. The monarch's Highland pony - Balmoral Erica, scored a victory in the Highland Championship in the Copper Ring - Royal Windsor Horse Show, May 10 2012
The Delhi Carved Emerald. This large emerald hexagon is carved on the front and back (a rose in front, a plant in back), set in silver and gold, and surrounded by brilliant-cut diamonds. Queen Mary was given this brooch by the Ladies of India at the Delhi Durbar, the coronation celebrations of George V and Mary in India in 1911.