Dagger Bottom: Faceting Design Diagram

Detailed information and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Dagger Bottom"

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HomeLearning CenterJewelry and LapidaryGemstone Faceting Diagrams and Technical Cutting InformationDagger Bottom: Faceting Design Diagram
By Jeff R. Graham

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

Dagger Bottom (QTZ34.JRG)
By Jeff R. Graham
Copyright 1994
74.4% Light Return
Angles for R.I. = 1.54
41 facets + 4 facets on girdle = 45
4-fold symmetry
96 index
L/W = 1.000 T/W = 0.393 T/L = 0.393
P/W = 0.483 C/W = 0.214
H/W = (P+C)/W+0.02 = 0.718
P/H = 0.674 C/H = 0.298
Vol./W^3 = 0.315

Addition # 1 - This design cut fairly fast, even if it looks a little mixed up at first look. Be careful when you cut the top, make sure that you cut to center point and make the meets. Cut in refractive indexes 1.54 to 1.93 with no changes. light material work well…


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.

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