Likely Quartz or Cubic Zirconia (CZ) based on visual characteristics
Likely Quartz or Cubic Zirconia (CZ) based on visual characteristics · Radiant/Cushion hybrid (modified rectangular brilliant)
Fair (shallow facets and poor light return) Cut

Carat
Estimated 1.5 - 2.5 carats
Color
Likely J-L (appears to have a warm, yellowish/brownish tint)
Clarity
I1-I2 (visible inclusions and significant internal haziness)
Shape
Radiant/Cushion hybrid (modified rectangular brilliant)
Overall Assessment
The stone exhibits optical properties and surface wear inconsistent with a high-quality natural diamond. It appears to be a gemstone simulant or a very low-clarity industrial-grade diamond with significant structural integrity issues.
Cut Quality
Fair (shallow facets and poor light return)
Brilliance
Low (lacks the high refractive index characteristic of natural diamond)
Fire
Low (minimal dispersion of light into spectral colors)
Scintillation
Poor (flat light pattern without the 'crushed ice' or sharp contrast of diamond)
Proportions
High table percentage with shallow pavilion angles
Symmetry
Good
Polish
Fair (visible surface abrasions and waxy luster)
Fluorescence
Cannot determine without UV light
Inclusions
Visible internal fractures, cloudiness, and possible feathers
Blemishes
Surface pitting and rounded facet edges
Origin
Synthetic/Simulant (visually consistent with low-cost mass-produced gemstones)
Treatment Detection
Possible surface coating to enhance luster; high probability of being an untreated simulant
Estimated Value
$10 - $100 (if non-diamond stimulant)
Certification Estimate
Unlikely to be certified by GIA/AGS due to low quality or alternative material status
Investment Potential
None (this is likely a decorative or costume-grade stone)
Similar Diamonds
Low-grade industrial diamonds or commercial-grade White Topaz
Setting Suggestions
Prong setting in silver or inexpensive white gold for costume jewelry
Care & Maintenance
Avoid ultrasonic cleaners and harsh chemicals; clean with mild soap and warm water
Interesting Facts
The large facet patterns and rounded edges are common indicators of a Mohs hardness significantly lower than 10.