Prop: 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 "Prop".


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

Prop (MC31.JRG)
By Jeff R. Graham
Copyright 1999
93.2% Light Return
Angles for R.I. = 1.54
25 facets + 8 facets on girdle = 33
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.351 T/L = 0.351
P/W = 0.458 C/W = 0.173
H/W = (P+C)/W+0.02 = 0.651
P/H = 0.704 C/H = 0.265
Vol./W^3 = 0.256

Addition # 4 - The corners on this are totally floating and can be cut to whatever size you need to optimize your rough with-out affecting the crown. This works well in medium to darker material, I use it for earrings, 1/2-6cts. This works in Tourmaline and Topaz. Cut this in R.I. 1.54 to 1.76 (89.9%) without changes.

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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