Tuesday, December 2, 2008

CHATHAM CREATED EMERALD GEM STONE


Ancient history records Emerald mines near the Red Sea, "Cleopatra's Mines", where the Pharaohs gathered gems between 3000 and 1500 B.C. The Incas and Aztecs of South America once worshipped Emerald as a holy stone. The Maharajas of India, who believed that the gem brought luck and restored health, had multitudes of Emeralds in their treasure vaults. Fine-quality Emeralds of significant size are even more valuable than diamonds. Carroll F. Chatham, a scientist from San Francisco after many years of research and great determination, discovered the technique of growing gems. His theory was that by, replicating the natural conditions deep within the earth, the appropriate temperatures, pressures and chemicals, he would be capable of growing a gem in his laboratory. Based on his theory, at a fraction of the cost of a mined gem, he could grow gemstones possessing the same physical, chemical, spectral and optical qualities of mined gems. In 1938, Chatham created his first gem which was Emerald. An accomplishment of brilliance, the art of producing these gems remains within the Chatham family only.


FINE = Minimal Eye Visible Inclusions, Medium to Dark Green, Good Cut, Good Polish.
GEM = Eye Clean to Very Minimal Eye Visible Inclusions, Medium to dark Greenish Blue changing to Medium Violet Red, Good Cut, Good Polish.
Moh's Hardness = 7.5 - 8.