Natural / Quartz (Amethyst/White Quartz appearance)
Natural / Quartz (Amethyst/White Quartz appearance) · Cushion Modified Brilliant
Very Good Cut
Carat
Approx. 4.5 - 5.5 ct
Color
Colorless (Near D-F equivalent if diamond)
Clarity
VS1 (Very Slightly Included)
Shape
Cushion Modified Brilliant
Overall Assessment
An attractive, large cushion-cut stone exhibiting good symmetry and clarity. Visual inspection cannot definitively rule out quartz or cubic zirconia without thermal or refractive index testing, but assuming diamond parameters, it represents a fine collector's piece.
Cut Quality
Very Good
Brilliance
High bright white reflection
Fire
Moderate dispersion of spectral colors
Scintillation
Balanced pattern of light and dark areas with good flash
Proportions
Medium table, moderate depth, standard cushion pavilion facets
Symmetry
Good
Polish
Good
Fluorescence
None observed
Inclusions
Minor pinpoint inclusions and faint internal feathering visible under magnification
Blemishes
Minor surface scratches on table facet
Origin
Natural terrestrial (likely African or Brazilian if quartz/gemstone)
Treatment Detection
No obvious signs of artificial treatments detected visually
Estimated Value
Varies significantly if confirmed as diamond vs. quartz; assuming high-grade natural diamond, estimated $20,000 - $35,000; if quartz, $50 - $150
Certification Estimate
GIA or IGI (if gemstone analysis confirms diamond origin)
Investment Potential
Moderate to high depending on certified grading and rare carat weight
Similar Diamonds
Standard cushion cut white diamonds with VS clarity
Setting Suggestions
Classic halo setting or vintage cushion bezel in platinum or 18k white gold
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh ultrasonic cleaners if inclusions are surface-reaching
Interesting Facts
Cushion cuts combine the old-school charm of the Old Mine Cut with modern brilliance technology