Natural Gemstone (likely Aquamarine or Blue Topaz rather than Diamond)
Natural Gemstone (likely Aquamarine or Blue Topaz rather than Diamond) · Emerald Cut
Good Cut

Carat
3.0 - 4.5 carats
Color
Very Light Blue / Sky Blue
Clarity
VS1 to VVS2 (Eye Clean)
Shape
Emerald Cut
Overall Assessment
This is a high-clarity, light blue gemstone held in a standard six-prong setting. While it mimics the look of a light blue diamond, the refractive properties and lack of fire suggest it is a natural aquamarine or similar semi-precious blue gemstone.
Cut Quality
Good
Brilliance
Low (Typical of step-cut pale colored gemstones)
Fire
Low (Minimal spectral dispersion visible)
Scintillation
Moderate (Windowing effects typical of large step cuts)
Proportions
Moderate table size with elongated step-cut facets and rounded corners
Symmetry
Very Good
Polish
Good to Very Good
Fluorescence
None visible
Inclusions
No significant internal inclusions visible to the naked eye; some minor internal reflections
Blemishes
Minor surface abrasions consistent with wear on a softer gemstone
Origin
Likely Brazil or Madagascar (common for aquamarine)
Treatment Detection
Likely Heat Treated (standard for blue gemstones to enhance color)
Estimated Value
$300 - $1,200 (if Aquamarine); lower if Blue Topaz
Certification Estimate
GIA Colored Stone Report or IGI Colored Stone Identification
Investment Potential
Low; primarily decorative/fashions value rather than asset-class investment
Similar Diamonds
Compare to Light Blue Diamond (significantly more expensive) or Blue Zircon
Setting Suggestions
Prong-set solitaire in White Gold or Platinum to complement the cool tones
Care & Maintenance
Ultrasonic cleaners should be used with caution; mild soap and warm water with a soft brush is safest
Interesting Facts
Step cuts like this were popularized in the Art Deco era to showcase clarity over brilliance