Radiant Enigma 685

Cutting Diagram & Optical Specifications

Target Material

Corundum (Sapphire & Ruby)

Refractive Index

RI 1.76 (Critical Angle 34.6°)

Cut Shape

Truncated Cushion Heptagon

Facet & Tier Count

78 facets · 9 tiers

Index Gear

84 index

Length / Width Ratio

1.02

Optical Optimization Score

0.978

Brightness & Contrast

1.09 / 1.00

Deliverable

Instant Printable PDF Cutting Instructions

Radiant Enigma 685 is a meetpoint gemstone faceting pattern computationally optimized for Corundum (Sapphire & Ruby) (RI 1.76) on a 84-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.