Quick Cushion: 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 "Quick Cushion".
Beryl (Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl)
Quick Cushion (MC28.JRG)
By Jeff R. Graham
Copyright 1999
88.6% Light Return
Angles for R.I. = 1.56
41 facets + 8 facets on girdle = 49
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.561 T/L = 0.561
P/W = 0.513 C/W = 0.174
H/W = (P+C)/W+0.02 = 0.707
P/H = 0.726 C/H = 0.246
Vol./W^3 = 0.304
Addition # 4 - This will work in R.I. 1.56-1.76 with no changes, I designed it for smaller stones, that is why the Pavilion is so simple. Works well in about any material, I use it for earrings, 1/2ct to 4cts. This works in Tourmaline and Topaz.
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
Aquamarine Value, Price, and Jewelry Information
Emerald Value, Price, and Jewelry Information
Seven Famous Emeralds and Their Stories
Emerald Origins: History and Identification
Latest Articles
Precision Faceting a Story Gemstone: Choosing Rough
32 Green Gemstones (How Many Do You Know?)
A Guide to Antique Georgian Jewelry
Hambergite Value, Price, and Jewelry Information
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!