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
Related Articles
Tourmaline Gem, Price, and Jewelry Information
Some Advice for Cutting Tourmaline Gemstones
A Look at African Paraíba Tourmaline Rough
Buying Gemstones in Afghanistan: A Beginner’s Guide
Latest Articles
800 Years of Mogok: A Celebration in Tenuous Times
What is the Average Gemstone Faceting Yield?
Pyroxmangite Value, Price, and Jewelry Information
How to Identify Emerald Simulants and Synthetics
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
