Crystal Nebula 406

Cutting Diagram & Optical Specifications

Target Material

Quartz, Amethyst & Citrine

Refractive Index

RI 1.54 (Critical Angle 40.5°)

Cut Shape

Cushion Heptagon

Facet & Tier Count

85 facets · 7 tiers

Index Gear

84 index

Length / Width Ratio

1.02

Optical Optimization Score

0.825

Brightness & Contrast

1.08 / 0.81

Deliverable

Instant Printable PDF Cutting Instructions

Crystal Nebula 406 is a meetpoint gemstone faceting pattern computationally optimized for Quartz, Amethyst & Citrine (RI 1.54) on a 84-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.