Faceting Design Diagram: Quartz Shield – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose

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

Quartz Shield (MC38.JRG) 3.0 carat Teal Tourmaline
By Jeff R. Graham
Copyright 1999
82.8% Light Return
Angles for R.I. = 1.54
44 facets + 10 facets on girdle = 54
1-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.507 T/L = 0.507
P/W = 0.426 C/W = 0.191
H/W = (P+C)/W+0.02 = 0.637
P/H = 0.668 C/H = 0.300
Vol./W^3 = 0.232

Addition # 4 – This is fairly easy to cut and has a nice flash. It is designed to be used with other stones in a set, but still be easy to set in jewelry. Cut in about any color material, 1cts+. Works in Tourmaline, Topaz and Peridot.

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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