OffTheDop

Twilight Glow 541

Truncated Octagon Corundum (Sapphire & Ruby) Faceting Diagram · Optimized for RI 1.76 · 96 Index Gear

Cutting Diagram & Optical Specifications

Target Material
Corundum (Sapphire & Ruby)
Refractive Index
RI 1.76 (Critical Angle 34.6°)
Cut Shape
Truncated Octagon
Facet & Tier Count
89 facets · 10 tiers
Index Gear
96 index
Length / Width Ratio
1.00
Optical Optimization Score
0.920
Brightness & Contrast
1.11 / 0.92
Deliverable
Instant Printable PDF Cutting Instructions

Twilight Glow 541 is a meetpoint gemstone faceting pattern computationally optimized for Corundum (Sapphire & Ruby) (RI 1.76) on a 96-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.