Likely Cubic Zirconia or White Topaz (Simulation)
Likely Cubic Zirconia or White Topaz (Simulation) · Round Brilliant
Good Cut

Carat
Estimated 0.70 to 0.90 carats
Color
F-G (Colorless to Near Colorless appearance)
Clarity
SI1 - VS2 (Estimated based on visible refractions and surface wear)
Shape
Round Brilliant
Overall Assessment
The stone appears to be a diamond stimulant rather than a natural specimen. The lack of sharp facet junctions and specific light return patterns suggests it is a decorative stone like CZ or white sapphire.
Cut Quality
Good
Brilliance
Moderate
Fire
Low to Moderate; lacks the high dispersion of a natural diamond
Scintillation
Diffuse; light pattern appears slightly muddy compared to diamond
Proportions
Table approximately 60%, slightly shallow crown height
Symmetry
Fair to Good
Polish
Good
Fluorescence
None detectable visually
Inclusions
Possible internal fractures or feather-like shadows near the girdle
Blemishes
Minor surface abrasions consistent with non-diamond simulants
Origin
Synthetic/Man-made (Simulation)
Treatment Detection
None visible; potential coating to increase luster
Estimated Value
$5 - $50 (if simulant); $800 - $1,500 (if low-grade natural)
Certification Estimate
Unlikely to be certified by GIA/AGS; IGI might categorize as a simulant
Investment Potential
Low; primary value is aesthetic/decorative
Similar Diamonds
Moisannite or Lab-Grown Diamonds of similar dimensions
Setting Suggestions
Six-prong solitaire setting in 14k White Gold or Sterling Silver
Care & Maintenance
Avoid harsh chemicals; clean with lukewarm soapy water and a soft brush
Interesting Facts
The stone exhibits 'windowing' where light passes through the center rather than reflecting, common in non-diamond stones.