Natural Diamond or Cubic Zirconia (CZ) Simulant
Natural Diamond or Cubic Zirconia (CZ) Simulant · Radiant Cut (Rectangular Modified Brilliant)
Good (The crown appears slightly shallow and the table facets are large) Cut
Carat
Estimated at 1.50 to 2.25 carats based on finger scale
Color
G-H (Near Colorless) with apparent high dispersion
Clarity
Estimated SI1 to SI2 (Visible internal reflections suggest potential inclusions)
Shape
Radiant Cut (Rectangular Modified Brilliant)
Overall Assessment
A sizeable radiant cut stone with strong fire but moderate brilliance. The rounded facet edges and high dispersion suggest it may be a high-quality simulant, but a professional thermal conductivity test is required to confirm.
Cut Quality
Good (The crown appears slightly shallow and the table facets are large)
Brilliance
Moderate (White light return is interrupted by shallow pavilion angles)
Fire
High (Strong rainbow spectral colors suggesting high dispersion)
Scintillation
Moderate (Large facets create a broader sparkle rather than a crushed ice effect)
Proportions
High table percentage, shallow crown height, likely 65-70% total depth
Symmetry
Fair to Good (Facet alignment appears slightly asymmetrical in crown)
Polish
Good (Edges appear slightly rounded under magnification)
Fluorescence
Medium Blue (Potential visible bluish tint in daylight)
Inclusions
Possible feathers or clouds visible near the center facets
Blemishes
Surface abrasions visible on the table and crown facets
Origin
Likely Earth-mined if natural, otherwise manufactured in a lab
Treatment Detection
No obvious signs of laser drilling; possibility of HPHT if lab-grown
Estimated Value
Natural: $8,000 - $12,000; Cubic Zirconia: $20 - $50
Certification Estimate
GIA (Gemological Institute of America) for natural or IGI for lab/simulant
Investment Potential
Low (Standard jewelry-grade stones typically do not appreciate rapidly)
Similar Diamonds
Classic Rectangular Radiant cuts available at diamond wholesalers
Setting Suggestions
A four-prong solitaire or a double-prong halo setting in 14k White Gold or Platinum
Care & Maintenance
Clean regularly with warm soapy water and a soft brush; store separately from other jewelry
Interesting Facts
Radiant cuts combine the elegant lines of an Emerald cut with the brilliance of a Round cut