Simulated/Cubic Zirconia
Simulated/Cubic Zirconia · Cushion Modified Brilliant
Good to Very Good (Simulant Cut) Cut
Carat
Estimated 2.50 to 3.50 carats based on finger scale
Color
Equivalent to D-E (Colorless)
Clarity
Equivalent to IF to VVS1
Shape
Cushion Modified Brilliant
Overall Assessment
The stone exhibits visual characteristics inconsistent with natural diamond, specifically 'rainbow' fire dispersion that exceeds diamond's refractive index. It is highly likely a high-quality Cubic Zirconia simulant.
Cut Quality
Good to Very Good (Simulant Cut)
Brilliance
High surface luster, but lower internal light return than diamond
Fire
Very High (Excessive rainbow dispersion characteristic of CZ)
Scintillation
Broad flash pattern with significant chromatic dispersion
Proportions
Relatively deep pavilion with a large table typical of cushion simulant cuts
Symmetry
Good
Polish
Excellent (Typical of high-end stimulants)
Fluorescence
None typically, though high dispersion mimics it in flashes
Inclusions
No internal inclusions visible to the naked eye
Blemishes
Minor surface abrasions on facet junctions common in softer stones
Origin
Laboratory manufactured (Synthetic Zirconium Dioxide)
Treatment Detection
None; inherent properties of the material
Estimated Value
$20 - $100 USD (Fashion jewelry valuation)
Certification Estimate
Unlikely to be graded by GIA as a diamond; potentially IGI as synthetic/simulant
Investment Potential
None; value is purely decorative/fashion
Similar Diamonds
Compare to high-fire Moissanite or high-grade Cubic Zirconia
Setting Suggestions
Best in a 4-prong silver or white gold plated fashion setting
Care & Maintenance
Avoid harsh chemicals; clean with soft brush and mild soap; store separately to avoid scratches
Interesting Facts
Cubic Zirconia has a higher dispersion rate (0.058–0.066) than actual diamond (0.044), which causes the 'rainbow' effect seen in the photo.