Astral Mirage 857

Cutting Diagram & Optical Specifications

Target Material

Topaz & Tourmaline

Refractive Index

RI 1.61 (Critical Angle 38.4°)

Cut Shape

Pentagon

Facet & Tier Count

49 facets · 8 tiers

Index Gear

120 index

Length / Width Ratio

1.05

Optical Optimization Score

0.827

Brightness & Contrast

0.87 / 0.81

Deliverable

Instant Printable PDF Cutting Instructions

Astral Mirage 857 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.