Mock Emerald: Faceting Design Diagram

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