Flash’n Diamonds: 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 "Flash'n Diamonds"
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Flash'n Diamonds (CHECK62.JRG)
By Jeff R. Graham
Copyright 2003
80.1% Light Return
Angles for R.I. = 1.62
45 facets + 16 facets on girdle = 61
2-fold, mirror-image symmetry
96 index
L/W = 2.001 T/W = 0.536
T/L = 0.268 P/W = 0.472 C/W = 0.208
H/W = (P+C)/W+0.02 = 0.699
P/H = 0.674 C/H = 0.297
Vol./W^3 = 0.571
Addition # 8 - This is designed for crystal Tourmaline… There is not much that can be done with long crystals besides a rectangle, this is a nice change of pace. This works well in about any color. Cut in refractive indexes 1.62 to 1.93 with no 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.
Related Articles
Tourmaline Value, Price, and Jewelry Information
Mint Tourmalines: Gemstones for Our Times
Gemstone Orientation for Beginners
Emerald Cutting Advice For Green Tourmaline And Rubellite
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
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!