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Industrial Technologies
SterilTR Industrial Technologies

Gemstones color enhancement

The gemstone irradiation is a process where a gemstone is artificially irradiated in order to enhance its optical properties.

 The gemstone irradiation is a process where a gemstone is artificially irradiated in order to enhance its optical properties. Certain natural gemstone colors, such as blue-to-green colors in diamonds, are the results of the exposure to natural radiation in the earth which is usually alpha or beta particle.

High levels of ionizing radiation can change the atomic structure of the gemstone’s crystal lattice, which in turn alters the optical properties within it. As a result, the gemstone’s color may be significantly altered or the visibility of its inclusions may be lessened. The irradiation enabled the creation of certain gemstone colors that do not exist or are extremely rare in nature.

Effects of irradiation:

Material Starting color Ending color
Beryl Colorless Yellow
Blue Green
Colorless (Maxixe-type) Blue
Diamond Colorless or yellow to brown Green, Blue and Red
Fluorite Colorless Various
Pearl Light colors Gray to black or gray-blue
Quartz Colorless to yellow or pale green Brown, amethyst, «smoky», rose
Topaz Yellow to orange Intensify colors
Colorless to pale blue Brown, blue, green
Tourmaline Colorless to pale colors Yellow, brown, pink, red, green-red (bicolor)
Blue Purple
Zircon Colorless Brown to red

 

Key advantages of radiation technologies:

It is a unique method of gemstones color enhancement. This technology has no alternatives.

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