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


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

Mock Emerald (MC33.JRG)
By Jeff R. Graham
Copyright 1999
82.7% Light Return
Angles for R.I. = 1.54
33 facets + 8 facets on girdle = 41
2-fold, mirror-image symmetry
96 index
L/W = 1.250 T/W = 0.884 T/L = 0.708
P/W = 0.499 C/W = 0.143
H/W = (P+C)/W+0.02 = 0.662
P/H = 0.754 C/H = 0.216
Vol./W^3 = 0.409

Addition # 4 – This is designed to set like a standard 8x10mm Emerald cut but has better yield and more brilliance. Cut in about any material, 1ct+. Works in Tourmaline and Topaz. Cut this in R.I. 1.54 to 1.76 983.3%) without changes.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.