Faceting Design Diagram: Britt’s Antique – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Britt’s Antique (CHECK47.JRG)
By Jeff R. Graham
Copyright 2003
86.8% Light Return
Angles for R.I. = 1.54
59 facets + 8 facets on girdle = 67
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.427
T/L = 0.427 P/W = 0.474 C/W = 0.177
H/W = (P+C)/W+0.02 = 0.671
P/H = 0.707 C/H = 0.264
Vol./W^3 = 0.238

Addition # 8 – Cut in refractive indexes 1.54 to 2.14 with no changes. This is nice and fairly fast to cut. It works well in light to medium saturated material. This is great in light colored Garnets like Mali.


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.