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

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

Brilliant Marquise 1.40 (MC35.JRG) 6.47 carat Nigerian pink Tourmaline
By Jeff R. Graham
Copyright 1999
84.6% Light Return
Angles for R.I. = 1.54
59 facets + 16 facets on girdle = 75
2-fold, mirror-image symmetry
96 index
L/W = 1.401 T/W = 0.753 T/L = 0.537
P/W = 0.437 C/W = 0.141
H/W = (P+C)/W+0.02 = 0.598
P/H = 0.731 C/H = 0.235
Vol./W^3 = 0.243

Addition # 4 - This cuts like a round brilliant, for those of you who have cut my "Brilliant Pear" type designs, this will be very similar. Cut to center point on the Pavilion, then cut the girdle... Light return is very good, 1cts+. This works in Tourmaline, Topaz, and Peridot.

 

 

 


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.