Lapis has been mined and traded since at least the 7th century BC. King Tut's sarcophagus was decorated with carved lapis scarabs, and ancient Persian priests dyed their robes with it. Before 1834, (when synthetic blue pigment was developed), the Old Masters relied on precious ground-up lapis lazuli to create blue paint for only the most special uses, like the Virgin Mary's garments. It symbolizes friendship, wisdom, and truth. The blue stone is said to encourage harmony in relationships and help its wearer to be authentic.