Target: 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 "Target".


Peridot (Olivine, Green, apple green to yellow green)

Target (PDOT7.JRG)
By Jeff R. Graham
Copyright 1998
74% Light Return
Angles for R.I. = 1.67
57 facets + 8 facets on girdle = 65
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.426 T/L = 0.426
P/W = 0.463 C/W = 0.216
H/W = (P+C)/W+0.02 = 0.699
P/H = 0.662 C/H = 0.310
Vol./W^3 = 0.248

Addition # 2 - This takes a little luck to do right the first time. The P5,P6 float in and point, the C3 floats also. Cut C2 & C3, then rough in the table, cut C4 to meet, you may have to fish them in, any material, 1-12cts. Cut in refractive indexes 1.67 to 2.14 (79.6%) with no 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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