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Green Diamond
A natural diamond coming into contact with a radioactive source at some point during its lifetime causes some diamonds to develop a green color. The time may be up to one million years or more. Green diamonds of this nature are very unique.
The most common form of diamonds comes from alpha particle radiation found in compounds of uranium or filter the groundwater. green spots on the surface of the green diamond or a thin film may develop on the skin of the diamond after a long exposure to these particles. Several times, the color Green will be removed when cutting or faceting process.
Bombardment by beta and gamma is the color of the diamond to a greater depth and in some rare cases, turn the whole green stone. Heating temperature just below 600 degrees Celsius can sometimes also cause a diamond to develop a green Ting. higher temperature in May turn the stone to a less desirable color yellow or brown.
Green Diamond
The lattice structure of diamonds crystal is modified by the bombardment by radioactive particles enough to disturb the equilibrium of the crystal structure and produce a green color. Addition heating will distort the network further and add or create another color change. radiation and heating permanently distort the structure of diamonds.
Some slightly colored diamonds are irradiated to make their color more intense. This means that low fields of radiation entering the cup and stone polished, darkening the outer part of the stone all the way around. The process is permanent and professionally accepted in the diamond industry.
Probably The largest diamond is irradiated Deepdene, a 104.88 carat yellow gold stone shaped cushion. The diamond was sold in Switzerland in 1997 for $ 715,320.
Dresden Diamond
The highest price ever paid per carat for a colored diamond was $ 926.315 for a 0.95 carat fancy purplish red stone auctioned Christie's Auction House in 1987. A vivid green brilliant, 90 carats was sold for $ 670.00 a carat in 2000.
Dresden Diamond
The largest green diamond in the natural world is the Dresden Green. It is classified as an apple "green" color and weighs 40.70 carats. The Gemological Institute America examined the stone in 1988. The Dresden Green Diamond was proved to be not only of extraordinary quality, but also a rare type IIa diamond and is the largest and has more beautiful natural green diamond ever found. The Dresden Green gets its name from the capital of Saxony, where it was exposed for over 200 years. The first known reference to its existence occurs in the correspondence, a new London-sheet of 1700.
About the Author:
David Cowley has created numerous articles on Diamonds. He has also created a Web Site dedicated to Diamonds. Visit Diamonds
Article Source: ArticlesBase.com - Facts About Green Diamonds
Vivid Green!
[affmage source="ebay" results="30"]Vivid Green[/affmage]
[affmage source="cj" results="30"]Vivid Green[/affmage]
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