Thorn: 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 "Thorn".


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

Thorn (MC52.JRG)
By Jeff R. Graham
Copyright 2000
91.2% Light Return
Angles for R.I. = 1.54
17 facets + 6 facets on girdle = 23
2-fold, mirror-image symmetry
96 index L/W = 1.246 T/W = 0.840
T/L = 0.674 P/W = 0.383 C/W = 0.130
H/W = (P+C)/W+0.02 = 0.532
P/H = 0.719 C/H = 0.243
Vol./W^3 = 0.179

Addition # 7 - Basically cut this like a square, then cut the P3(G) to get the L/W… This is easy and fast. I like it in about any material, it works well in dark colors. Cut in refractive indexes 1.54 to 1.93 with no changes. This design makes nice earrings…

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.

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