Likely Cubic Zirconia (Simulant)
Likely Cubic Zirconia (Simulant) · Round Brilliant
Good to Very Good (proportions appear slightly deep) Cut

Carat
Estimated 1.5 - 2.0 carats based on finger proportion
Color
Likely D (Colorless)
Clarity
Likely VVS1 or Flawless (visually eye-clean)
Shape
Round Brilliant
Overall Assessment
The stone shows high dispersion and a glassy appearance characteristic of Cubic Zirconia rather than a natural or lab-grown diamond.
Cut Quality
Good to Very Good (proportions appear slightly deep)
Brilliance
High (appears slightly glassy compared to natural diamond)
Fire
High (strong rainbows visible, common in CZ)
Scintillation
Moderate to high
Proportions
Standard round proportions with a slightly large table and high crown
Symmetry
Good
Polish
High (typical of synthetic simulants)
Fluorescence
None visible
Inclusions
None visible under magnification; stone appears remarkably clear
Blemishes
Minor surface abrasions on facet edges, common in softer simulants
Origin
Synthetic/Lab-manufactured simulant
Treatment Detection
None noted; material is synthetic
Estimated Value
$10 - $50 (if confirmed as Cubic Zirconia)
Certification Estimate
Unlikely to be certified by GIA/AGS; IGI might grade for jewelry identification
Investment Potential
Very low; resale value is negligible
Similar Diamonds
Swarovski Zirconia or high-grade Moissanite
Setting Suggestions
Four-prong yellow gold stud setting
Care & Maintenance
Ultrasonic cleaning or mild soap and warm water; store away from harder gems like natural diamonds
Interesting Facts
Cubic Zirconia has been the most common diamond simulant since its mass production began in the 1970s.