Vanguard: Faceting Design Diagram


Successful tips,details and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Vanguard"

0

Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)

Vanguard Jeff Graham Face Design

Vanguard_facet_design2

Vanguard (SUN38.JRG)
By Jeff R. Graham
Copyright 2006
83.2% Light Return
Angles for R.I. = 1.54
16 facets + 4 facets on girdle = 20
4-fold symmetry
96 index
L/W = 1.000 P/W = 0.450 C/W = 0.165
H/W = (P+C)/W+0.02 = 0.635 P/H = 0.709 C/H = 0.259 Vol./W^3 = 0.258

PAVILION

CROWN

Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is easy, fast to cut, and designed for earrings and thin rough. It will work in color or light shiller. Large sized stones work best and I would suggest 8mm and up.

Vanguard_facet_design3

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.

Never Stop Learning

When you join the IGS community, you get trusted diamond & gemstone information when you need it.

Become a Member

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!