Rhomboid Split: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Rhomboid Split".
Rhomboid Split (SUN28.JRG)
By Jeff R. Graham
90.6% Light Return
Angles for R.I. = 1.54
13 facets + 4 facets on girdle = 17
L/W = 3.000 T/W = 0.917 T/L = 0.306 P/W = 0.450
C/W = 0.175 H/W = (P+C)/W+0.02 = 0.645 P/H = 0.698 C/H = 0.271 Vol./W^3 = 1.046
Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed for long skinny-colored material and will work in gold as well. This is basically a reflector and easy to cut. The L/W is not critical.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Bytownite Value, Price, and Jewelry Information
Orthoclase Value, Price, and Jewelry Information
Feldspar Value, Price, and Jewelry Information
Labradorite Value, Price, and Jewelry Information
Eight Famous Sapphires and the Stories Behind Them
How to Dry Opals Safely
Rose Quartz Value, Price, and Jewelry Information
Ten Big, Beautiful, and Affordable Engagement Ring Stones
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!