Diamonds Up: 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 "Diamond Up".

Home Learning Center Jewelry and Lapidary Gemstone Faceting Diagrams and Technical Cutting InformationDiamonds Up: Faceting Design Diagram

By Jeff R. Graham

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

Diamonds Up (CHECK21.JRG)
By Jeff R. Graham
Copyright 2001
80.5% Light Return
Angles for R.I. = 1.54
81 facets + 16 facets on girdle = 97
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.394 T/L = 0.394
P/W = 0.528 C/W = 0.180
H/W = (P+C)/W+0.02 = 0.727
P/H = 0.725 C/H = 0.247
Vol./W^3 = 0.295

Addition # 6 - This can be cut in refractive indexes 1.54 to 1.93 with no changes. This should be cut in a light to medium colored material as it will darken a bit.

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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Diamonds Up: Faceting Design Diagram

Jeff R. Graham

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