Synthetic · Cubic Zirconia (CZ)

CZ — Blue

Cobalt-doped blue CZ mimics sapphire, blue topaz and tanzanite with flawless clarity and explosive fire. Isotropic character, over-the-limit RI and SG near 5.8 clinch the identification.

Colour
blue

Transparency
Transparent

RI
2.150–2.180

SG
5.60–6.00

Mohs
8.0–8.5

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