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

Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Cross (QTZ50.JRG)
By Jeff R. Graham
Copyright 1996
70.6% Light Return
Angles for R.I. = 1.54
47 facets + 8 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.544 T/L = 0.409
P/W = 0.511 C/W = 0.248
H/W = (P+C)/W+0.02 = 0.779
P/H = 0.656 C/H = 0.319
Vol./W^3 = 0.428

Addition # 1 - A preform is a must L/W 1.33. The cutting order on the pavilion can be changed. This design cuts fairly easy (with a preform). The P6 facets can be varied. This is a fairly deep design and will help darken light colors...

 

 


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 1998-2008 Gram Faceting - All Rights Reserved.