National Geographic – Naked Science – Super Diamonds Part 6 Of 6

Diamond is the hardest substance found on planet earth and for many centuries it has been one of the most revered and sought after materials by humankind. For years these precious gems have been admired as a thing of ultimate beauty and a sign of supreme wealth, steeped in mythology and deeply rooted in ancient legends, but today in the hands of modern day alchemists these precious stones are taki…