Glitter Squared: 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 "Glitter Squared".


Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Glitter Squared Jeff Graham Facet DesignGlitter Squared Jeff Graham Facet Design

Glitter Squared (MC87.JRG)
By Jeff R. Graham
Copyright 2003
88.9% Light Return
Angles for R.I. = 1.62
129 facets + 8 facets on girdle = 137
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.492 T/L = 0.492 P/W = 0.521
C/W = 0.193 H/W = (P+C)/W+0.02 = 0.734 P/H = 0.710 C/H = 0.263 Vol./W^3 = 0.332



Addition # 12 - The corners of this design float. Cut the P3(G) facet to divide the P1 (81,87 at P5) in equal parts. Cut in refractive indexes 1.62 to 2.14 (89.9%) with no changes.

Glitter Squared Jeff Graham Facet Design

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!