Straight Sides: Faceting Design Diagram

Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Straight Sides".


Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)

Straight Sides (GNETP30A.JRG)
By Jeff R. Graham
Copyright 1996
80% Light Return
Angles for R.I. = 1.73
45 facets + 10 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.959 T/L = 0.721
P/W = 0.414 C/W = 0.145
H/W = (P+C)/W+0.02 = 0.579
P/H = 0.715 C/H = 0.250
Vol./W^3 = 0.310

Gram Book 1 - This design cuts fast and mid-easy for an oval. The P7-P9 can be cut in another order if you want. It has nice flash and is good for darker material, 1-8cts. Works in man-made Sapphire and Spinel.

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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