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

Starred (QTZ53.JRG)
By Jeff R. Graham
Copyright 1997
89.8% Light Return
Angles for R.I. = 1.54
71 facets + 10 facets on girdle = 81
5-fold, mirror-image symmetry
80 index
L/W = 1.000 T/W = 0.471 T/L = 0.471
P/W = 0.428 C/W = 0.176
H/W = (P+C)/W+0.02 = 0.624
P/H = 0.685 C/H = 0.283
Vol./W^3 = 0.199

Addition # 2 - This is nice in Electric Blue Topaz too. It cuts easy in a larger stone, and is good in any color, 1-16cts. I sell a lot of this shape in Tourmaline earrings. It is an interesting shape, different than a round or square, but still easy to set. Cut in refractive indexes 1.54 to 1.93 (87.4%) with no changes.

 

 

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