Double Cross Square: Faceting Design Diagram

Helpful tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Double Cross Square".

Home Learning Center Jewelry and Lapidary Gemstone Faceting Diagrams and Technical Cutting InformationDouble Cross Square: Faceting Design Diagram

By Jeff R. Graham

Zircon (Hyacinth, Starlite)

Double Cross Square (ZIRCON6.JRG)
By Jeff R. Graham
Copyright 1993
88.8% Light Return
Angles for R.I. = 1.93
101 facets + 8 facets on girdle = 109
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.505 T/L = 0.505
P/W = 0.448 C/W = 0.201
H/W = (P+C)/W+0.02 = 0.669
P/H = 0.670 C/H = 0.300
Vol./W^3 = 0.286

Addition # 2 - This design is not as hard to cut as it might look, it is all cut to center point except for the 2 step cuts. However, this design is not for a new cutter, unless you just want to try it, 1-18cts. Cut in refractive indexes 1.76 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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