Spiral Sun: Faceting Design Diagram

Details, Helpful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Spiral Sun"

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HomeLearning CenterJewelry and LapidaryGemstone Faceting Diagrams and Technical Cutting InformationSpiral Sun: Faceting Design Diagram
By Jeff R. Graham

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

Spiral Sun

Jeff Graham Facet Design

Spiral Sun (MIR66.JRG)
By Jeff R. Graham
Copyright 2005
91.9% Light Return
Angles for R.I. = 1.54
33 facets + 8 facets on girdle = 41
8-fold symmetry
96 index
L/W = 1.000 T/W = 0.367 T/L = 0.367 P/W = 0.435 C/W = 0.240 H/W = (P+C)/W+0.02 = 0.695 P/H = 0.625 C/H = 0.346 Vol./W^3 = 0.241

PAVILION

CROWN

Addition # 10 - This is another good earring design for lightly saturated materials. This is easy and fast to cut. I like it in Rose de France. Cut in refractive indexes 1.54 to 2.14 with not changes.

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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