The Dresden Green diamond is a 41 carat natural green diamond, which has a historical record dating to 1722, when a London news-sheet carried an article about it in its Oct 25-27th edition.
The stone is being used to compare natural versus lab-produced green diamonds. It is hoped to devise a test to differentiate between naturally green diamonds, which are quite rare, and lab-produced ones.
The large greendiamond was brought and cut in London in 1726.
Green colors are the hottest for the human brain to process and for the human eye to see.
The green color in natural diamonds is caused by natural radiation of the earth and probably uranium ore. Since radiation is the cause of color in both cases of natural and enhanced diamonds it poses an identification nightmare.
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