Home Rough Equipment Books Online Designs Just Ask Jeff Order News List Contact Me Links
Amethyst Aquamarine Beryl Citrine Emerald Garnet Opal Peridot Sapphire Scapolite Spinel Sunstone Synthetics Topaz Tourmaline Quartz Zircon

Bargains Beginner's Page Eclectic New Stuff Odds & Ends Parcels Specials
Cut Gemstones Cutting Information Pricing Guides Buying Gemstones


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

Rhodolite Rose (GNETR1.JRG)
By Jeff R. Graham
Copyright 1993
85.8% Light Return
Angles for R.I. = 1.73
153 facets + 8 facets on girdle = 161
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.508 T/L = 0.508
P/W = 0.425 C/W = 0.210
H/W = (P+C)/W+0.02 = 0.655
P/H = 0.649 C/H = 0.320
Vol./W^3 = 0.248

Gram Book 1 - It is all cut to center point and cuts easy. A larger size stone is better but it can be cut small. This works well in man-made Sapphire and CZ if you want to cut it large, but cannot find, or can afford, a large piece of natural rough. Cut in refractive index 1.73 to 2.14 (88.7%) with no changes.

 



Random - Cosine - ISO

Return to OnLine Design Index

Home Rough Equipment Books Online Designs Just Ask Jeff Order News List Contact Me Links


Copyright 1998-2009 Gram Faceting - All Rights Reserved.