Faceting Design Diagram: Swindler – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Jeff Graham Facet Design

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Swindler (MIR45.JRG)
By Jeff R. Graham
Copyright 2005
84.4% Light Return
Angles for R.I. = 1.54
42 facets + 6 facets on girdle = 48
6-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.355 C/W = 0.351
H/W = (P+C)/W+0.02 = 0.726 P/H = 0.489 C/H = 0.484
Vol./W^3 = 0.213

PAVILION

CROWN

Addition # 10 – Cut this in refractive indexes 1.54 to 1.76 with no changes. Got a deep small triangular shaped piece of rough? That is what this design is for. Use this in lightly saturated materials, it is ideal for Afghan Tourmaline nodules. Which is what I designed this for, a lot of that rough tends to be slightly triangular in shape and pale in color. Note: C2 only meets in corners and C3 only meets C3 in the middle. Cut them as evenly as you can. This is not difficult to cut but keep in mind that you may need to tweak a little on C2 and C3. On a small stone a table can be cut at C4. On a large stone a table can be cut at C5.

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Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.