Olmec Jade Celt - PF.5743, Origin: Mexico, Circa: 900 BC to 500 BC, Dimensions: 11" (27.9cm) high, Collection: Pre-Columbian, Style: Olmec, Medium: Jade. A celt is a common prehistoric tool of stone or metal, shaped like a chisel or ax head. This large jade celt demonstrates the spectacular workmanship of Olmec lapidaries. No engravings decorate the work. The brilliant green hues of the jade are allowed to dominate. The variety of the color astonishes, from a rich, dark emerald green to a bright, pale sandy green. The wider end of the celt has been superbly worked into a pointed edge. This would have conceivably been used for chiseling; but it is difficult to imagine using this object for something so utilitarian. Probably, it had some ceremonial significance lost to us with the dissolution of the Olmec civilization. Overall, the celt is finely polished, the smoothness of its surface making the colors much more lustrous.