Origami Star: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Origami Star".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Origami Star (MC43.JRG)
By Jeff R. Graham
82% Light Return
Angles for R.I. = 1.62
23 facets + 7 facets on girdle = 30
1-fold, mirror-image symmetry
L/W = 1.146 T/W = 0.544 T/L = 0.474
P/W = 0.420 C/W = 0.205
H/W = (P+C)/W+0.02 = 0.645
P/H = 0.651 C/H = 0.318
Vol./W^3 = 0.219
Addition # 7 - This is an interesting design, it cuts fast and easy. The shape is a bit different, but I usually seem to have some rough that will cut this. Cut to center point, be careful of the L/W. Other than L/W this is easy… Cut in refractive Indexes 1.62 to 1.93(83.6%) with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Tourmaline Value, Price, and Jewelry Information
Mint Tourmalines: Gemstones for Our Times
Tourmaline Engagement Ring Stones: the Ultimate Guide
How Do Tourmalines Form?
How to Dry Opals Safely
Rose Quartz Value, Price, and Jewelry Information
Ten Big, Beautiful, and Affordable Engagement Ring Stones
What is the Best Lap for Polishing Sapphire?
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!