Natural Green Diamond or possibly Green Tourmaline/Emerald (Visual assessment indicates a vibrant green gemstone, likely a naturally irradiated green diamond or another green colored gemstone like tourmaline given the deep hue)
Natural Green Diamond or possibly Green Tourmaline/Emerald (Visual assessment indicates a vibrant green gemstone, likely a naturally irradiated green diamond or another green colored gemstone like tourmaline given the deep hue) · Emerald Cut
Good to Very Good Cut

Carat
Estimated 2.0 - 3.5 carats based on visual dimensions
Color
Fancy Dark Green / Natural Green
Clarity
VS2 to SI1 estimated based on visible internal features
Shape
Emerald Cut
Overall Assessment
A striking emerald-cut green gemstone displaying rich saturation and classic step-cut faceting, requiring professional gemological laboratory testing to definitively confirm species and treatment status
Cut Quality
Good to Very Good
Brilliance
Moderate to High, characteristic of step-cut stones featuring flashes of light rather than intense sparkle
Fire
Low to Moderate, typical for emerald-cut stones
Scintillation
Broad flashes of light with distinct alternating dark and light areas (the 'hall of mirrors' effect)
Proportions
Standard emerald cut proportions with a wide open table and broad step facets
Symmetry
Good
Polish
Good
Fluorescence
Cannot be determined without UV testing (typically strong yellow or green in natural green diamonds)
Inclusions
Internal feather-like inclusions and minor mineral crystals visible under magnification
Blemishes
Minor surface abrasions on facet junctions typical of a worn or handled stone
Origin
Natural geological origin, potentially associated with radioactive mineral deposits responsible for green coloration
Treatment Detection
Potential surface or whole-stone artificial irradiation (very common for green diamonds to achieve this saturation)
Estimated Value
Varies widely depending on whether it is a genuine natural colored diamond, emerald, or tourmaline (ranging from hundreds for tourmaline to tens of thousands for natural green diamond)
Certification Estimate
GIA or IGI (would require advanced spectroscopic testing to confirm natural vs. lab irradiation)
Investment Potential
High if confirmed as a rare natural untreated green diamond; moderate otherwise
Similar Diamonds
Fancy green emerald-cut diamonds or high-grade green tourmalines
Setting Suggestions
Yellow or white gold bezel setting or prong setting to protect the corners of the emerald cut
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh chemicals and ultrasonic cleaners if inclusions are present
Interesting Facts
Natural green diamonds get their color from natural radiation exposure in the earth over millions of years, which alters the diamond's crystal lattice