Probable Cubic Zirconia or Costume Crystal

Probable Cubic Zirconia or Costume Crystal · Round Brilliant

Fair to Good (standard commercial cut) Cut

Probable Cubic Zirconia or Costume Crystal - Round Brilliant

Carat

Estimated 0.50 to 0.75 carats

Color

Colorless (equivalent to D-E range)

Clarity

Eye-Clean (simulated IF/VVS)

Shape

Round Brilliant

Overall Assessment

Based on the visual 'windowing' and the specific dispersion of light against the white tissue, this specimen displays the optical properties of a synthetic simulant rather than a natural or lab-grown diamond.

Cut Quality

Fair to Good (standard commercial cut)

Brilliance

Moderate; the stone shows high surface reflectiveness but shallow internal light return

Fire

High; localized rainbow dispersive flashes characteristic of CZ

Scintillation

Predictable and symmetrical sparkle pattern

Proportions

Standard commercial proportions with high pavilion depth

Symmetry

Good

Polish

Good

Fluorescence

Indeterminable via image

Inclusions

None visible; appearance is internally glass-like and overly clear

Blemishes

None visible at this magnification

Origin

Synthetic/Factory-made

Treatment Detection

N/A - Synthetic material

Estimated Value

$5 - $20 USD (Costume Jewelry value)

Certification Estimate

N/A - Unlikely to be accepted by GIA/AGS as a natural diamond

Investment Potential

None; synthetic simulants do not retain resale value

Similar Diamonds

CZ fashion studs or Swarovski zirconias

Setting Suggestions

Fashion jewelry settings, silver-tone base metals, or stainless steel

Care & Maintenance

Clean with mild soap and water; avoid harsh chemicals which can dull the surface

Interesting Facts

Cubic Zirconia is heavier than real diamonds and lacks the thermal conductivity of a true carbon stone

Identified on 6/22/2026