Green Diamond

Even though the faceting might only preserve a band of green color around the girdle and a small amount in the culet, that can be enough to produce an apparent green color throughout the stone.

These diamonds often display a green color which is very subtle. Most green diamonds have a color that is modified by hints of yellow, blue, or gray.

Variations in color, tone, and saturation can make a big difference in the selling price of the gem. The most valuable green diamonds have a pure green color, medium tone, and strong saturation.

These colored diamonds might earn a color grade of "Fancy Intense" or "Fancy Vivid. Diamonds with a natural green color developed that color while they were underground, in rocks that contained small amounts of radioactive material such as uranium or thorium.

As the radioactive materials decayed, they emitted radiation that penetrated the nearby diamond crystal. When this type of radiation enters a diamond, it can knock electrons or carbon atoms out of their position in the crystal lattice.

This alteration most strongly influences the outer layer of the diamond crystal. As a result the green color is often present as a shallow "skin" on the outside of the diamond crystal.

Diamonds with a uniform green color throughout the stone are exceptionally rare. The displacement of electrons and carbon atoms deforms the crystal lattice and changes the way light travels through the diamond.

The deformation causes the diamond crystal to selectively absorb much of the light entering the diamond and selectively transmit wavelengths in the green portion of the spectrum.

This green light travels to the eye of the observer and gives the diamond a green appearance. Green color from natural irradiation is the most common cause of green color in diamonds.

However, green color can also be caused by structural defects in the diamond's crystal structure, caused by the presence of nitrogen, hydrogen or nickel atoms.

Green Diamond Ring: This ring is set with natural diamonds which have been irradiated to produce a rich green color.

Image used with permission of JewelryPoint. Ingenious people are always trying improve the color of gemstones to increase their value. They do this by mimicking the processes of nature or applying treatments that alter the color of the gem.

The first documented treatment to produce green diamonds was an experiment done by Antoine-Henri Becquerel, shortly after his discovery of radioactivity in He irradiated some diamonds to see if they would be altered, and their color changed to green.

In , Sir William Crookes stored a few polished diamonds in radioactive salts. When they were removed from the salt, the diamonds had a green color at the surface and that color extended to a shallow depth.

Many polishers purposely leave what is referred to as a Natural along the girdle of the stone. The purpose of the Natural is so any diamond associations, such as the GIA, can identify the natural color of the stone and thereof award it a certified diamond certificate.

The most famous green diamonds, which have managed to make quite a statement among the rare diamond collectors, are of different shades and colors.

The Dresden Green is a It was reported as one of the largest and finest natural green diamond ever discovered.

Having such a unique color combination, The Ocean Dream happens to be one of the rarest stones on earth.

The diamond is a 5. Turn your vision for unique jewelry into a reality. See examples below for inspiration on green diamond necklaces and earrings.

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This website uses cookies. Find Out More. Michael Fried. The stone's unique apple green color is due to natural exposure to radioactive materials, as the irradiation of diamonds can produce changes in color.

The Dresden Green Diamond has been used to compare natural versus lab-produced green diamonds — it is hoped that it can be used to devise a test to differentiate between naturally green diamonds, which are quite rare, and lab-produced ones.

From Wikipedia, the free encyclopedia. Staatliche Kunstsammlungen Dresden.

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