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Marble Cosmos 766
Mirrored Cut-Corner Trillion Topaz & Tourmaline Faceting Diagram · Optimized for RI 1.61 · 96 Index Gear
Cutting Diagram & Optical Specifications
- Target Material
- Topaz & Tourmaline
- Refractive Index
- RI 1.61 (Critical Angle 38.4°)
- Cut Shape
- Mirrored Cut-Corner Trillion
- Facet & Tier Count
- 42 facets · 10 tiers
- Index Gear
- 96 index
- Length / Width Ratio
- 1.12
- Optical Optimization Score
- 0.848
- Brightness & Contrast
- 1.08 / 0.78
- Deliverable
- Instant Printable PDF Cutting Instructions
Marble Cosmos 766 is a meetpoint gemstone faceting pattern computationally optimized for Topaz & Tourmaline (RI 1.61) on a 96-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.