
Diego Light House: Faceting Design Diagram
Successful tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Diego Light House"
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Diego Light House (MC77.JRG)
By Jeff R. Graham
Copyright 2002
88% Light Return
Angles for R.I. = 1.54
43 facets + 4 facets on girdle = 47
1-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.197 T/L = 0.197
P/W = 0.307 C/W = 0.185
H/W = (P+C)/W+0.02 = 0.513
P/H = 0.599 C/H = 0.362
Vol./W^3 = 0.117
Addition # 7 - This is a variation of my original "Light House" design that is free online. A lot of people have asked me for another design like it for a larger stone. Here it is… I like this in lighter colors 1.54 to 1.93 with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Related Articles
Rose Quartz Value, Price, and Jewelry Information
Ametrine Value, Price, and Jewelry Information
Amethyst Gem, Price, and Jewelry Information
Citrine Value, Price, and Jewelry Information
Latest Articles
Milarite Value, Price, and Jewelry Information
Appraising Pearls: How to Grade Pearls
Agate Buying Guide
Carving Techniques for Handling Inclusions in Transparent Gems
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.