Ice: Faceting Design Diagram
Successful tips, details, and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Ice".
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Ice (CHECK49.JRG)
By Jeff R. Graham
Copyright 2002
80.7% Light Return
Angles for R.I. = 1.54
58 facets + 12 facets on girdle = 70
3-fold, mirror-image symmetry
96 index
L/W = 1.077 T/W = 0.157 T/L = 0.146
P/W = 0.434 C/W = 0.223
H/W = (P+C)/W+0.02 = 0.677
P/H = 0.641 C/H = 0.330
Vol./W^3 = 0.238
Addition # 8 - This cuts pretty fast and is not hard. It works best in a large stone and I actually designed it for Rose de France. Cut in refractive indexes 1.54 to 2.14 (87.9%)with no changes. P5 & P6 cut fast and can be omitted on a small stone (the table too).
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
Related Articles
Ametrine Value, Price, and Jewelry Information
Amethyst Value, Price, and Jewelry Information
Rose Quartz Value, Price, and Jewelry Information
Citrine Value, Price, and Jewelry Information
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!