Author: Stephen Hofer

Gray

March 22, 2017March 16, 2017Stephen HoferColour Varieties

Diamonds from the gray variety.

Colourless

March 21, 2017March 16, 2017Stephen HoferColour Varieties

Diamonds from the colorless variety.

Brown

March 20, 2017March 16, 2017Stephen HoferColour Varieties

Diamonds from the brown variety.

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COLORCARD

The Hofer Gemstone Colorcard will obtain and inexpensive, readily portable device that will allow gemologists, gem merchants, jewelers or the buying public to simply determine the color temperature of common natural or artificial light sources in which they may be required to either buy, purchase, or grade, diamonds or colored stones. -The Australian Gemmologist

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