Buff: 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 "Buff".
Beryl (Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl)
Buff (B35.JRG)
By Jeff R. Graham
Copyright 2001
84.9% Light Return
Angles for R.I. = 1.56
73 facets + 12 facets on girdle = 85
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.766 T/L = 0.576
P/W = 0.665 C/W = 0.189
H/W = (P+C)/W+0.02 = 0.874
P/H = 0.761 C/H = 0.216
Vol./W^3 = 0.524
Addition # 5 - This is pretty nice design, a preform is a good idea. This works in R.I. 1.54 to 1.93 (86.6%). It is deep and will help deepen light colors.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Related Articles
Aquamarine Value, Price, and Jewelry Information
Emerald Value, Price, and Jewelry Information
La Belle De Jour: A Giant Emerald Matrix
The Sacred Emerald Buddha
Latest Articles
800 Years of Mogok: A Celebration in Tenuous Times
What is the Average Gemstone Faceting Yield?
Pyroxmangite Value, Price, and Jewelry Information
How to Identify Emerald Simulants and Synthetics
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
