Faceting Design Diagram: Diag-nal 1.50 – Reflector – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Diag-nal 1.50 – Reflector (MC14.JRG) Amethyst
By Jeff R. Graham
Copyright 1999
89.4% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19
2-fold symmetry
96 index
L/W = 1.500 T/W = 0.856 T/L = 0.571
P/W = 0.500 C/W = 0.338
H/W = (P+C)/W+0.02 = 0.858
P/H = 0.582 C/H = 0.39
Vol./W^3 = 0.767

Addition # 4 – This is another neat flash, the shapes are diamonds. It is easy and fast to cut and makes a nice color flash stone. I like it in a larger size (6x9mm and up) and about any color. Works well in Tourmaline and Topaz… Cut this in R.I. 1.54 to 1.76 without changes.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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