Elizabeth’s Flash: 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 "Elizabeth's Flash".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Elizabeth's Flash (CHECK20.JRG)
By Jeff R. Graham
89.5% Light Return
Angles for R.I. = 1.62
27 facets + 4 facets on girdle = 31
2-fold, mirror-image symmetry
L/W = 1.200 T/W = 0.320 T/L = 0.267
P/W = 0.466 C/W = 0.231
H/W = (P+C)/W+0.02 = 0.717
P/H = 0.650 C/H = 0.322
Vol./W^3 = 0.489
Addition # 6 - This is designed to be deep for high yield return… I originally had a tri-colored crystal-shaped piece of Tourmaline rough that I designed this for. It was such an unusual piece of rough and I did not want to waste any of it. This works well in about any color, I particularly like it in multi-colored Tourmaline. It will tend to darken a bit…
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Tourmaline Value, Price, and Jewelry Information
Mint Tourmalines: Gemstones for Our Times
Tourmaline Engagement Ring Stones: the Ultimate Guide
How Do Tourmalines Form?
What is the Best Lap for Polishing Sapphire?
Seven Famous Pearls and Their Histories
Opal Stones and Gems: Value, Price, and Jewelry Information
Seven Stunning but Delicate 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!