Deeply Aqua: 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 "Deeply Aqua"
Topaz (Swiss, Electric, London Blue, Imperial, White, Yellow, Pink, Champange)
Deeply Aqua (TOPAZ7.JRG)
By Jeff R. Graham
Copyright 1993
82.6% light return
Angles for R.I. = 1.62
81 facets + 12 facets on girdle = 93
2-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.503 T/L = 0.503
P/W = 0.556 C/W = 0.253
H/W = (P+C)/W+0.02 = 0.829
P/H = 0.671 C/H = 0.305
Vol./W^3 = 0.362
Addition # 3 - This design should be cut as a preform to save waste, but it could be cut to center point. I designed this stone for some very light topaz I bought. It is made to be deep to help the color, 1-12cts. Cut in refractive indexes 1.62 to 1.93 (83.7%) with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
