Nimble: 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 "Nimble"0
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
By Jeff R. Graham
84% Light Return
Angles for R.I. = 1.62
73 facets + 8 facets on girdle = 81
4-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.159 T/L = 0.159 P/W = 0.397
C/W = 0.315 H/W = (P+C)/W+0.02 = 0.733 P/H = 0.542 C/H = 0.431 Vol./W^3 = 0.255
Addition # 13 - This is pretty fast to cut and deep to help darken light material. This works in R.I. 1.62to 1.76 with no changes. I designed this for pastel Afghan nodules and it yields well for the shape.
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?
Azurite Value, Price, and Jewelry Information
An Introduction to the Lapidary Arts
Crystalline Quartz Buying Guide
How Does Vapor Deposition Create Mystic Topaz and Aqua Aura Quartz?
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!