Likely Diamond Simulant (Potential Cubic Zirconia or Moissanite)
Likely Diamond Simulant (Potential Cubic Zirconia or Moissanite) · Radiant or Modified Cushion Cut
Good to Very Good (though showing light leakage common in simulants) Cut
Carat
Estimated 3.5 to 5.0 carats (based on scale relative to fabric texture)
Color
High (D-E color range equivalent)
Clarity
Eye-clean (VS1 or higher equivalent visually)
Shape
Radiant or Modified Cushion Cut
Overall Assessment
Based on the high level of fire/dispersion and the visual scale, this is likely a high-quality diamond simulant rather than a natural earth-mined diamond. It serves as an excellent decorative piece but lacks the investment characteristics of a natural stone.
Cut Quality
Good to Very Good (though showing light leakage common in simulants)
Brilliance
Moderate; shows some 'see-through' effect and high surface reflection
Fire
Extremely high; the intense rainbow dispersion suggests a high refractive index simulant
Scintillation
Broad flash pattern rather than the needle-like sparkle of a high-end natural diamond
Proportions
Deep modified brilliant style; large table facet and steep crown angles
Symmetry
Good
Polish
High gloss surface reflection
Fluorescence
Cannot determine from image; rainbow flare is likely lens flare/diffraction
Inclusions
No significant internal characteristics visible at this magnification
Blemishes
Minor surface abrasions common to softer simulants visible on facet edges
Origin
Synthetic/Lab-manufactured
Treatment Detection
None visible; appears to be a homogeneous synthetic material
Estimated Value
$20 - $500 USD (depending on whether it is CZ or Moissanite)
Certification Estimate
Unlikely to be GIA-certified; possible IGI or uncertified fashion stone
Investment Potential
Low; simulants and synthetics do not typically hold significant resale value
Similar Diamonds
Swarovski Zirconia or high-end Moissanite brands like Charles & Colvard
Setting Suggestions
Best suited for a four-prong cocktail ring or a pendant in sterling silver or 14k white gold
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid abrasive cleaners that might scratch the surface
Interesting Facts
The intense 'doubling' and rainbow flaring seen in the photo are often key indicators used by gemologists to distinguish Moissanite from Natural Diamond