Radiant Barion Pear: Faceting Design Diagram

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


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

Radiant Barion Pear (B37.JRG)
By Jeff R. Graham
Copyright 2001
84% Light Return
Angles for R.I. = 1.54
64 facets + 16 facets on girdle = 80
1-fold, mirror-image symmetry
96 index
L/W = 1.436 T/W = 0.878 T/L = 0.611
P/W = 0.608 C/W = 0.186
H/W = (P+C)/W+0.02 = 0.814
P/H = 0.747 C/H = 0.228
Vol./W^3 = 0.424

Addition # 5 - This works in R.I. 1.54 to 1.76 (86.6%) with no changes. This design is a lot of work to cut and not for a new cutter. Preform L/W=1.436 is needed to make this work. Other than a lot of work it is not especially hard. I designed this for light materials and large sized stones.

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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