Likely Diamond Simulant (Cubic Zirconia or Moissanite)
Likely Diamond Simulant (Cubic Zirconia or Moissanite) · Round Brilliant
Fair to Good; shows unusually thick girdle and shallow pavilion angles Cut

Carat
Estimated 1.5 - 2.0 carats based on size relative to wood grain
Color
Visual E-F (Colorless)
Clarity
Internally Flawless (IF) to VVS1 based on lack of visible inclusions
Shape
Round Brilliant
Overall Assessment
The stone displays visual characteristics strongly consistent with a diamond simulant, such as Cubic Zirconia. The lack of natural inclusions, the specific 'fire' pattern, and the soft facet junctions suggest it is not a natural earth-mined diamond.
Cut Quality
Fair to Good; shows unusually thick girdle and shallow pavilion angles
Brilliance
Moderate; shows 'glassy' appearance rather than the internal light return of a diamond
Fire
High; displays prominent rainbow spectral flashes (fire) which often exceeds natural diamond in stimulants
Scintillation
Broad, blocky flashes rather than the intricate needle-like sparkle of a high-quality diamond
Proportions
High table percentage with a disproportionately thick girdle and shallow depth
Symmetry
Fair; facet junctions appear slightly rounded or misaligned
Polish
Good; surface shows high luster but soft facet edges typical of softer stimulants
Fluorescence
Inconclusive from image; likely None
Inclusions
None visible at macroscopic level; characteristic of mass-produced simulants
Blemishes
Minor surface abrasions possible; facet edges show less sharpness than natural diamond
Origin
Synthetic (Lab-manufactured simulant)
Treatment Detection
Not applicable for simulants; no signs of diamond-specific coatings
Estimated Value
$10 - $50 USD if Cubic Zirconia; $100 - $300 if Moissanite
Certification Estimate
Likely would not be accepted by GIA/AGS for diamond grading; may receive a 'Simulant' report from IGI
Investment Potential
Very Low; simulants do not hold resale value and are considered decorative items
Similar Diamonds
Swarovski Zirconia or high-grade Charles & Colvard Moissanite
Setting Suggestions
Simple 4-prong silver or 14k white gold solitaire setting for costume jewelry
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals that can dull the surface of simulants
Interesting Facts
The 'rainbow' flash visible on the table is a classic sign of high dispersion often found in Moissanite or CZ, which can exceed the fire of a real diamond.