Trap Swirl: 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 "Trap Swirl"

Home Learning Center Jewelry and Lapidary Gemstone Faceting Diagrams and Technical Cutting InformationTrap Swirl: Faceting Design Diagram

By Jeff R. Graham

Cubic Zirconia

Trap Swirl (CZ8.JRG)
By Jeff R. Graham
Copyright 1993
75% Light Return
Angles for R.I. = 2.20
37 facets + 6 facets on girdle = 43
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.581 T/L = 0.503
P/W = 0.452 C/W = 0.213
H/W = (P+C)/W+0.02 = 0.684
P/H = 0.660 C/H = 0.311
Vol./W^3 = 0.286

Gram Book 1 - Do not let the low reflected light return fool you! This is a great cut, almost all of the light entering this design is trapped and it has extra high dispersion. Light to med material, 1/2-4cts. Cut in refractive index 1.76 (76.9%)to 2.14 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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Trap Swirl: Faceting Design Diagram

Jeff R. Graham

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