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The Art of Diamond Coloring

Diamond Enhancements
Diamond Coloration
Clarity Enhancement
HPHT Process
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Colored Diamonds
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Green Diamonds
Yellow Diamonds
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Email: info@prismgem.com
Toll Free: (877) PRISM GEM
Phone: (212) 920-8747
Fax: (212) 920-8535


Diamond Coloring Services

Natural diamonds can be treated to produce a variety of colors including hues of blue, green, yellow, pink, etc. Treated diamonds provide jewelry designers with a variety of colors and intensities which otherwise were not possible. More...


Diamond Clarity Enhancement

Feather like inclusions in your diamond can be filled with transparent material having refractive index close to that of diamond. This and other similar processes can significantly improve appearance of your diamond without altering its other properties. More...


High Pressure High Temperature Processing of Diamonds (HPHT)

Using the HPHT Process, we can transform certain types of brownish diamonds to white or near white color. Other diamonds can be transformed to greenish, yellowish, or yellowish orange colored diamonds. More...

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