Piaget. Coco Chanel invented this kind of necklace, which she showed in her first jewelry collection in 1932. It was called the Collier Comete. Jewelers had to figure out how to make a stretchable metal collar. This one is stunning.
The diamond coronation necklace and earrings were originally created for Queen Victoria. The jewels have been worn by Queen Alexandra, Queen Mary, The Queen Mother and Queen Elizabeth II at their coronations.
The Star of South Africa. The first important large white diamond to come from South Africa, it is credited for a drastic economic turn-around for the region. Found in 1869, it weighed 83.5 carats in rough crystal form and was cut into a 47.69-carat old style pear-cut diamond. The stone was later called the “Dudley Diamond."