Hielo: Faceting Design Diagram

Successful tips, details, and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Hielo".


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

Hielo (MIR36.JRG)
By Jeff R. Graham
Copyright 2004
86.9% Light Return
Angles for R.I. = 1.62
27 facets + 6 facets on girdle = 33
3-fold symmetry
72 index
L/W = 1.048 P/W = 0.388 C/W = 0.193
H/W = (P+C)/W+0.02 = 0.601
P/H = 0.646 C/H = 0.321
Vol./W^3 = 0.178

Addition # 9 - This is interesting to cut and has a unique reflection. Cut in refractive indexes 1.62 to 2.14 with no changes. This is a neat earring design and works well in most material. Try it in Ametrine for an unusual stone.

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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