Cubic Zirconia Jewelry Official

Cubic Zirconia (CZ) is a lab-created gemstone made from zirconium dioxide, widely used as an affordable and ethical alternative to diamonds. While it mimics the look of a diamond, it has distinct physical properties, grading systems, and care requirements that determine its longevity.

CZ ranks 8–8.5 on the Mohs scale. While durable for daily wear, it is softer than diamonds (10) and moissanite (9.25), making it more susceptible to scratches over several years. CUBIC ZIRCONIA JEWELRY

When shopping for CZ jewelry, look for these indicators of quality: Your Complete Guide to Buying Cubic Zirconia Ring Sets Cubic Zirconia (CZ) is a lab-created gemstone made

CZ is designed to replicate diamond brilliance, but there are notable differences in how it performs and wears over time: While durable for daily wear, it is softer

CZ has a higher dispersion (0.058–0.066) than diamonds (0.044), which creates more "fire" or rainbow-like flashes of light. However, its lower refractive index means it has slightly less overall "brilliance" (white light return) than a diamond.

CZ is significantly denser, weighing about 1.7 times more than a diamond of the same size.