Scot Plaid: 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 "Scot Plaid".
Scot Plaid (QTZ37.JRG)
By Jeff R. Graham
69.2% Light Return
Angles for R.I. = 1.54
97 facets + 6 facets on girdle = 103
6-fold, mirror-image symmetry
L/W = 1.155 T/W = 0.511 T/L = 0.442
P/W = 0.469 C/W = 0.202
H/W = (P+C)/W+0.02 = 0.691
P/H = 0.678 C/H = 0.293
Vol./W^3 = 0.271
Addition # 1 - This design is tough to cut because of the step cuts, and the small C6 facets (have to be exact) on the crown. This design is good for very light colored materials, notice it is not bright, but it has a lot of sparkle. Cut in refractive indexes 1.54 to 2.20 with no 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
Seven Famous Pearls and Their Histories
Opal Stones and Gems: Value, Price, and Jewelry Information
Seven Stunning but Delicate Engagement Ring Stones
Advice For Grading Dark Colored Gemstones
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!