It was among the first gemstones to be worn as jewellery and worked on. At excavations in the ancient centres of culture around the Mediterranean, archaeologists have again and again found among the grave furnishings decorative chains and figures made of lapis lazuli? clear indications that the deep blue stone was already popular thousands of years ago among the people of Mesopotamia, Egypt, Persia, Greece and Rome. It is said that the legendary city of Ur on the Euphrates plied a keen lapis lazuli trade as long ago as the fourth millennium B.C., the material coming to the land of the two great rivers from the famous deposits in Afghanistan. In other cultures, lapis lazuli was regarded as a holy stone. Particularly in the Middle East, it was thought to have magical powers. Countless signet rings, scarabs and figures were wrought from the blue stone which Alexander the Great brought to Europe.