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


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

Zip (MC49.JRG)
By Jeff R. Graham
Copyright 2001
89.4% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19
1-fold symmetry
96 index
L/W = 1.000 T/W = 0.656 T/L = 0.656
P/W = 0.462 C/W = 0.099
H/W = (P+C)/W+0.02 = 0.581
P/H = 0.795 C/H = 0.171
Vol./W^3 = 0.220

Addition # 7 – This is a design made for accent stones. The best way to cut this is to cut a square girdle first. When I say edge on P4(G), I mean cut to the long edge. The best way to do it is cut until the P4(G)just meets 72 index (cutting the pavilion). This is actually pretty easy and works great for 1.54 to 1.93 with no changes. I like it cut in red Garnet.

 


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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