 Carnelian beads from the Indus were found in the Sumerian tombs of Ur, the Royal Cemetery at Ur, dating to 2600-2450.In particular, carnelian beads with an etched design in white were probably imported from the Indus Valley, and made according to a technique of acid-etching developed by the Harappans.Lapis Lazuli was imported in great quantity by Egypt, and already used in many tombs of the Naqada II period (circa 3200 BCE).