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

Star Rise (MIR26.JRG)
By Jeff R. Graham
Copyright 2004
89.8% Light Return
Angles for R.I. = 1.54
30 facets + 5 facets on girdle = 35
5-fold, mirror-image symmetry
80 index
L/W = 1.051 P/W = 0.389 C/W = 0.197
H/W = (P+C)/W+0.02 = 0.606
P/H = 0.642 C/H = 0.325
Vol./W^3 = 0.177

Addition # 9 - This is a neat design, it's fast and easy to cut and designed for light to medium saturated materials. This is very nice in Tourmaline and is outstanding for earrings. Cut in refractive indexes 1.54 to 2.14 with no changes.

 

 

 

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