Prince Charles presented his wife Camilla with a truly unique art deco-style engagement ring, featuring a huge square-cut diamond flanked by three diamond baguettes on each side. A family heirloom, it was reportedly given to the Queen Mother in 1926 on the occasion of the birth of her daughter, Queen Elizabeth. Monaco Princess, Princess Sofia Of Sweden, Princess Victoria Of Sweden, Princess Charlene, Crown Princess Victoria, Royal Brides, Royal Weddings, Royal Engagement Rings, Wedding Rings