Indeterminate (Visual characteristics suggest probable Simulant like Cubic Zirconia or Glass)
Indeterminate (Visual characteristics suggest probable Simulant like Cubic Zirconia or Glass) · Round Brilliant
Fair to Poor (The facet edges appear rounded rather than sharp) Cut
Carat
Estimated 0.50 - 0.75 carats (based on size relative to palm)
Color
Estimated F-G (Colorless to Near-Colorless range)
Clarity
Estimated SI1 - I1 (Visible internal reflections and lack of sharp brilliance)
Shape
Round Brilliant
Overall Assessment
The stone lacks the sharpness, refractive brilliance, and specific luster associated with natural or lab-grown diamonds. It is most likely a common simulant such as Cubic Zirconia. Professional thermal testing is recommended for definitive confirmation.
Cut Quality
Fair to Poor (The facet edges appear rounded rather than sharp)
Brilliance
Low (Light return is flat and lacks the high refractive index of a diamond)
Fire
High (Shows significant color dispersal which often indicates a simulant like CZ)
Scintillation
Poor (Does not display the distinct 'on-off' sparkle of a genuine diamond)
Proportions
Likely deep; table appears small relative to the overall diameter
Symmetry
Fair (Visible asymmetry in facet alignment and light return)
Polish
Good (Surface appears smooth but lacks mirror-like diamond luster)
Fluorescence
Unknown (Requires UV light source for detection)
Inclusions
Difficult to distinguish from surface reflections; possible fuzzy internal texture
Blemishes
Visible surface abrasions and rounded facet junctions typical of non-diamond materials
Origin
Likely synthetic/manufactured simulant
Treatment Detection
N/A (Commonly mass-produced as-is)
Estimated Value
Minimal ($5 - $50 if a simulant; $500 - $1,500 if natural diamond of this size/quality)
Certification Estimate
Unlikely to be certified by GIA; potentially an 'Identification Report' from a local lab
Investment Potential
None (Simulants and lower grade diamonds do not hold resale value well)
Similar Diamonds
Standard 5mm-6mm Cubic Zirconia loose stones
Setting Suggestions
Simple 4-prong or 6-prong silver or white gold mounting for costume jewelry
Care & Maintenance
Keep clean with mild soap and water; avoid abrasive cleaners which may scratch softer stones
Interesting Facts
Cubic Zirconia has more fire (color flashes) than a real diamond, which often helps in identification