Plus Motive: 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 "Plus Motive".
Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)
Plus Motive (GNETP28.JRG)
By Jeff R. Graham
75% Light Return
Angles for R.I. = 1.73
77 facets + 8 facets on girdle = 85
4-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.417 T/L = 0.417
P/W = 0.430 C/W = 0.212
H/W = (P+C)/W+0.02 = 0.663
P/H = 0.650 C/H = 0.320
Vol./W^3 = 0.254
Gram Book 1 - This design cuts fairly easy. Watch the P6 meet, it's on the apex/point formed by the P4,P5 facets. Cut in a light to medium material,(Grossular is good) 1-8cts. Cut in refractive indexes 1.73 to 2.14 (83.9%) with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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