Eternal Monarch 390

Cutting Diagram & Optical Specifications

Target Material

Synthetic Moissanite (Silicon Carbide)

Refractive Index

RI 2.67 (Critical Angle 22.0°)

Cut Shape

Truncated Heptagon

Facet & Tier Count

64 facets · 7 tiers

Index Gear

84 index

Length / Width Ratio

1.01

Optical Optimization Score

0.964

Brightness & Contrast

0.95 / 1.01

Deliverable

Instant Printable PDF Cutting Instructions

Eternal Monarch 390 is a meetpoint gemstone faceting pattern computationally optimized for Synthetic Moissanite (Silicon Carbide) (RI 2.67) on a 84-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.