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


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

Star Fish (MIR7.JRG) Pink Tourmaline
By Jeff R. Graham
Copyright 2004
90.8% Light Return
Angles for R.I. = 1.54
36 facets + 6 facets on girdle = 42
6-fold, mirror-image symmetry
96 index
L/W = 1.155 P/W = 0.450 C/W = 0.211
H/W = (P+C)/W+0.02 = 0.681
P/H = 0.661 C/H = 0.309
Vol./W^3 = 0.229

Addition # 9 – This works best in light colors. Cut in refractive indexes 1.54 to 1.76 with no changes. I designed this for 10mm earrings and it is quite striking in Rose de France. On a very large stone a table can be cut to meet C4. This makes a very interesting stone.


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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