24 Rose: Faceting Design Diagram
Detailed information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "24 Rose".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
24 Rose (DOME29.JRG)
By Jeff R. Graham
Copyright 2007
81.9% Light Return
Angles for R.I. = 1.62
129 facets + 24 facets on girdle = 153
12-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.299 T/L = 0.299 P/W = 0.405 C/W = 0.277
H/W = (P+C)/W+0.02 = 0.702 P/H = 0.577 C/H = 0.395
Vol./W^3 = 0.251
PAVILION
CROWN
Addition # 13 - Cut in refractive indexes 1.62 to 2.14 with no changes. This is designed for pale to light saturated material and works well in about any color. I like it in pink Tourmaline. This is not hard to cut.
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 Gem, Price, and Jewelry Information
A Look at African Paraíba Tourmaline Rough
Trapiche Gems: An Introduction
Mined in America: Top Spots for Gem Hunting in the US
Latest Articles
Morganite Buying Guide
How Do Amethysts Form?
Rhodizite Value, Price, and Jewelry Information
Pearl Treatments and Enhancements
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!