Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

High Fashion (MIR32.JRG)
By Jeff R. Graham
Copyright 2004
88.2% Light Return
Angles for R.I. = 1.62
46 facets + 5 facets on girdle = 51
5-fold, mirror-image symmetry
80 index
L/W = 1.051 T/W = 0.371 T/L = 0.353
P/W = 0.448 C/W = 0.215
H/W = (P+C)/W+0.02 = 0.683
P/H = 0.656 C/H = 0.315
Vol./W^3 = 0.229

Addition # 9 - This is a Mirage cut because it only has 51 facets and when finished will look like 150 facets. As you can see, this is a fairly traditional cut and not hard to do. Use light to medium saturated material and cut in refractive indexes 1.62 to 1.76 with no changes.

 

 

 

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