Lion's Eye: 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 "Lion's Eye".

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Peridot

Lions Eye Jeff Graham Facet Design  Lions Eye_jeff_graham_facet_design3

Lion's Eye (MC116.JRG)
By Jeff R. Graham
Copyright 2006
74.7% Light Return
Angles for R.I. = 1.67
181 facets + 16 facets on girdle = 197
2-fold, mirror-image symmetry
96 index
L/W = 1.268 T/W = 0.432 T/L = 0.341 P/W = 0.643
C/W = 0.315 H/W = (P+C)/W+0.02 = 0.978 P/H = 0.658 C/H = 0.322 Vol./W^3 = 0.504

PAVILION

CROWN

Addition # 12 - Cut this in refractive indexes 1.67 to 2.14 with no changes. This is difficult to cut, I designed it for a large piece of Peridot. P11,C5, just cut to center point, make sure you have the rough because it makes life much easier.

Lions Eye_jeff_graham_facet_design2

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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