It belongs to the Sapphire family of gems and has color that ranges from light to medium Lemon Yellow. In 1938, 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. Chatham Created Blue Sapphire was first developed in 2000. An accomplishment of brilliance, the art of producing these gems remains within the Chatham family only.
GEM = Eye Clean to Very Minimal Eye Visible Inclusions, Medium Yellow, Good Cut, Good Polish.
Moh's Hardness = 9.
Moh's Hardness = 9.
