French kings adored them. Jehan Shah, builder of the Taj Mahal, wore an 88-carat heirloom at his coronation in 1628. Diamonds also offer an awesome connection with pre-history and lands populated with dinosaurs. The youngest volcanic rock in which diamonds are brought to the earth's surface is about 70 million years old. When you pick up your diamond jewelry you are literally holding a piece of geological history in your hand.
Diamonds are hard beyond belief.