Brilliant Pear 1.197: Faceting Design Diagram

Successful tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called Brilliant Pear 1.197


Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Brilliant Pear 1.197 (MC34.JRG) 2.97 carat green Afghan Tourmaline
By Jeff R. Graham
Copyright 1999
88.1% Light Return
Angles for R.I. = 1.62
53 facets + 16 facets on girdle = 69
1-fold, mirror-image symmetry
96 index
L/W = 1.197 T/W = 0.642 T/L = 0.537
P/W = 0.428 C/W = 0.163
H/W = (P+C)/W+0.02 = 0.612
P/H = 0.700 C/H = 0.267
Vol./W^3 = 0.227

Addition # 4 - Here is another Brilliant pear, I cut all of them a often, and I like this one in particular. It works well in about any material, it is a little more work than a couple of my others, but a lot less than a normal pear. This works in Topaz and Peridot. Cut this in R.I. 1.62 to 1.76 (89.7%) without 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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