Z-Diamonds: Faceting Design Diagram
Helpful Tips and guide on Faceting Designs.Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Z-Diamonds - Reflector"0
Z-Diamonds - Reflector (MC13.JRG)
By Jeff R. Graham
90.7% Light Return
Angles for R.I. = 1.54
13 facets + 4 facets on girdle = 17
L/W = 1.500 T/W = 0.892 T/L = 0.595
P/W = 0.500 C/W = 0.254
H/W = (P+C)/W+0.02 = 0.774
P/H = 0.646 C/H = 0.328
Vol./W^3 = 0.651
Addition # 4 - This is a neat one when it flashes. I find it works well in about any material, I like it in a little bit larger size. It cut easy and fast and is designed to give a nice color flash when rocked on the long axis. It works well in Tourmaline and Topaz. Cut this in R.I. 1.54 to 1.76 without changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Rose Quartz Value, Price, and Jewelry Information
Ametrine Value, Price, and Jewelry Information
Amethyst Value, Price, and Jewelry Information
Citrine Value, Price, and Jewelry Information
Lapidary Technology Through the Ages: Laps and Polish
Why are Topaz and Citrine Gemstones Misidentified?
Identifying Garnets Simplified
Staurolite Value, Price, and Jewelry Information
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!