Home Rough Bargains 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 Topaz Tourmaline Quartz Zircon
Beginner's Page New Stuff Odds & Ends Specials Parcels Synthetics
Cut Gemstones Gemological Information Gemstone Pricing Guides How to buy Gemstones

Sapphire / Corundum (Ruby, Ceylon, Padparadschah, Pink, Yellow, Green)

Kashmire 1.33 (MC64.JRG)
By Jeff R. Graham
Copyright 2002
83% Light Return
Angles for R.I. = 1.76
81 facets + 16 facets on girdle = 97
2-fold, mirror-image symmetry
120 index
L/W = 1.328 T/W = 0.632 T/L = 0.476
P/W = 0.562 C/W = 0.179
H/W = (P+C)/W+0.02 = 0.761
P/H = 0.738 C/H = 0.235
Vol./W^3 = 0.349

Addition # 7 - For an oval, this is pretty easy to cut . It is designed for re-cutting native cut Sapphire ovals. It is L/W=1.33 and it is a good idea to check the L/W when you cut the girdle.




Random - Cosine - ISO

Return to OnLine Design Index

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


Copyright 1998-2007 Gram Faceting - All Rights Reserved.