Cubic Zirconia

Cubic zirconia (CZ) can occur naturally as the mineral baddeleyite. However, the synthesized material ranks as the most popular diamond simulant, primarily due to its low manufacturing cost. Synthetic CZ is available in many colors, including colorless. Although its hardness and dispersion differ from diamond, a well-cut CZ can make a convincing and attractive substitute. "Baguette, Double Side Checkerboard Cut CZ" by Michelle Jo. Licensed under CC By 3.0.

Article: Cubic Zirconia Polishing Survey Results

Credit: Michelle Jo