Trig Glitter: 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 "Trig Glitter".

Home Learning Center Jewelry and Lapidary Gemstone Faceting Diagrams and Technical Cutting InformationTrig Glitter: Faceting Design Diagram

By Jeff R. Graham

Peridot

Trig Glitter (MC110.JRG)

By Jeff R. Graham
Copyright 2006
79.3% Light Return
Angles for R.I. = 1.67
88 facets + 6 facets on girdle = 94
3-fold, mirror-image symmetry
96 index
L/W = 1.073 T/W = 0.383 T/L = 0.357 P/W = 0.515
C/W = 0.246 H/W = (P+C)/W+0.02 = 0.781 P/H = 0.660 C/H = 0.315 Vol./W^3 = 0.292

PAVILION

CROWN

Addition # 12 - Cut this in refractive index 1.67 to 2.14 with no changes. I designed this for Peridot or light colored Garnets. It is killer in any lightly saturated material and also works well in Zircons. Note: C2 only meets at the corners, cutting the tier to center point is the easiest way to make all the facets even.

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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