Faceting Design Diagram: Brilliant Pear 1.30 – Garnet – Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite


Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)

Brilliant Pear 1.30 (MC36.JRG) 6.44 carat Rose Malaya Garnet
By Jeff R. Graham
Copyright 1999
82.2% Light Return
Angles for R.I. = 1.73
50 facets + 14 facets on girdle = 64
1-fold, mirror-image symmetry
96 index
L/W = 1.302 T/W = 0.623 T/L = 0.479
P/W = 0.428 C/W = 0.192
H/W = (P+C)/W+0.02 = 0.641
P/H = 0.669 C/H = 0.300
Vol./W^3 = 0.260

Addition # 4 – This cuts pretty much like a round brilliant, it works well and is set up for Garnet. I use it a lot in Rose Malaya Garnet, cut to center point on the Pavilion and then cut the girdle to meet, 1cts+. Works in Spinel, Sapphire, as well as man-made materials.


Random – Cosine – ISO

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.