Author: Stephen Hofer

Blue

March 31, 2017March 29, 2017Stephen HoferColour Varieties

Diamonds from the blue variety.

Yellow

March 30, 2017March 16, 2017Stephen HoferColour Varieties

Diamonds from the yellow variety.

White

March 29, 2017March 16, 2017Stephen HoferColour Varieties

Diamonds from the white 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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