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Refractive Index 2.15 Critical Angle 27.7° Hardness 8–8.5 Mohs

Cubic Zirconia (CZ) Faceting Diagrams

Recommended Rough: Colored & white cubic zirconia (CZ), high-RI lab crystals

With RI 2.15, a forgiving 27.7° critical angle, and 0.060 dispersion (higher than diamond), cubic zirconia unlocks dramatic optical patterns that lower-RI natural stones simply cannot sustain.

Cutting quartz or sapphire angles in CZ wastes its angular range. Every RI 2.15 diagram below is purpose-optimized for CZ's wide refraction fan to produce high-contrast kaleidoscopic flash and vivid spectral fire.

Top Cubic Zirconia (CZ) Cutting Diagrams (RI 2.15)

Handpicked showcase renders and highest-scoring optical patterns for RI 2.15 rough.

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