King Tutankhamun’s Desert Glass: Over 3300 years ago, the ancient Egyptians knew about Libyan Desert Glass and held it in high regard. The pendant shown above was one of several buried with King Tutankhamun (King Tut), an Egyptian pharaoh of the 18th Dynasty who ruled between 1332 and 1323 BC. The yellow center stone is a superb piece of Libyan Desert Glass, used as the dominant gem in this pendant.