OffTheDop
Refractive Index 2.42 Critical Angle 24.4° Hardness 10 Mohs

Diamond Faceting Diagrams (RI 2.42)

Recommended Rough: Lab-grown CVD/HPHT diamond, natural diamond, strontium titanate

At RI 2.42 (critical angle 24.4°), rays exit the crown with steep refraction fans where sub-degree angle shifts separate world-class scintillation from flat, washed-out glare.

Each RI 2.42 pattern in this collection clears a strict 0.88+ optical optimization threshold across brightness, structured head-shadow contrast, spatial entropy, and tilt scintillation.

Filter All 11,393+ Diamond Designs in Store → Interactive RI 2.42 Showcase 🔮 Visual Gem Finder

Top Diamond Cutting Diagrams (RI 2.42)

Handpicked showcase renders and highest-scoring optical patterns for RI 2.42 rough.

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Other Gemstone Materials by Refractive Index

Sapphire & Ruby RI 1.76 Quartz & Amethyst RI 1.54 Beryl, Emerald & Aquamarine RI 1.58 Topaz & Tourmaline RI 1.61 Spinel & Garnet RI 1.72 Cubic Zirconia (CZ) RI 2.15 Diamond RI 2.42 Moissanite RI 2.67

Browse Faceting Diagrams by Cut Shape

Oval Round Hexagon Emerald & Rectangle Square & Cushion Trillion & Triangle Shield Pear Marquise Octagon, Pentagon & Polygons