Topaz Regalia 156

Cutting Diagram & Optical Specifications

Target Material

Topaz & Tourmaline

Refractive Index

RI 1.61 (Critical Angle 38.4°)

Cut Shape

Truncated Cushion Pentagon

Facet & Tier Count

91 facets · 12 tiers

Index Gear

120 index

Length / Width Ratio

1.03

Optical Optimization Score

0.870

Brightness & Contrast

0.97 / 0.83

Deliverable

Instant Printable PDF Cutting Instructions

Topaz Regalia 156 is a meetpoint gemstone faceting pattern computationally optimized for Topaz & Tourmaline (RI 1.61) on a 120-tooth index gear. Download includes complete tier-by-tier pavilion, girdle, and crown cutting angles, index numbers, and meetpoint diagrams.