Quell: 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 "Quell".

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Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)

Quell Jeff Graham Facet Design

Quell Jeff Graham Facet Design

Quell (SUN19.JRG)
By Jeff R. Graham
Copyright 2006
77.4% Light Return
Angles for R.I. = 1.54
73 facets + 16 facets on girdle = 89
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.467 T/L = 0.467 P/W = 0.548
C/W = 0.148 H/W = (P+C)/W+0.02 = 0.716 P/H = 0.765 C/H = 0.207 Vol./W^3 = 0.270

PAVILION

CROWN

Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed to be a deeper RB. It works well in any colored material and is particularly good in Beryl. This is also nice in large yellow Sunstone. Note: The girdle can be cut in first and the P1 cut to meet so that center point is not needed and it saves rough.

Quell Jeff Graham Facet Design

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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