“S” Hex +2 : Faceting Design Diagram
Details and guide for Faceting Design Diagrams. This design is called a " "S" Hex +2". This is medium hard to cut, after you have cut this once it gets easy
Topaz (Swiss, Electric, London Blue, Imperial, White, Yellow, Pink, Champange)
"S" Hex +2 (TOPAZ13.JRG)
By Jeff R. Graham
Copyright 1998
86% Light Return
Angles for R.I. = 1.62
47 facets + 8 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.200 T/W = 0.738 T/L = 0.615
P/W = 0.463 C/W = 0.185
H/W = (P+C)/W+0.02 = 0.668
P/H = 0.693 C/H = 0.277
Vol./W^3 = 0.319
Addition # 2 - Cutting in the table before the C7 facets is easier. A preform is a good idea also. This is medium hard to cut, after you have cut it once it gets easy. Any good material, 1-14cts. 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
Topaz Gem, Price, and Jewelry Information
How Does Vapor Deposition Create Mystic Topaz and Aqua Aura Quartz?
Can You Identify Gems Without Seeing Gemstone Colors?
Buying Gemstones in Afghanistan: A Beginner’s Guide
Latest Articles
Table of Refractive Indices and Double Refraction of Selected Gems
Red Gemstones: Ruby, Spinel, Garnet, and Other Great Picks for Jewelry
Jadeite Value, Price, and Jewelry Information
Tips for Cutting and Polishing Halite
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!