Not a diamond; visual characteristics strongly suggest this is a piece of green glass or slag, possibly colored with chromium or iron.
Not a diamond; visual characteristics strongly suggest this is a piece of green glass or slag, possibly colored with chromium or iron. · Raw, unpolished or roughly fractured fragment with elongated tabular form.
Not applicable (Rough, unfaceted fragment with conchoidal fractures). Cut

Carat
Cannot be precisely determined without density testing, but visually appears to be approximately 3.0 to 5.0 carats equivalent in volume.
Color
Deep vivid green (Fancy Dark Green descriptive color, though non-gemological).
Clarity
Included / Heavily included with internal bubbles, flow lines, and fractures characteristic of glass.
Shape
Raw, unpolished or roughly fractured fragment with elongated tabular form.
Overall Assessment
The specimen shown is a green glass fragment rather than a diamond or precious gemstone. It lacks the hardness, refractive index, and optical properties of natural or lab-grown diamonds.
Cut Quality
Not applicable (Rough, unfaceted fragment with conchoidal fractures).
Brilliance
Low to moderate vitreous luster, lacking the high refractive index and dispersion of a diamond.
Fire
Minimal to none, completely inconsistent with diamond optical properties.
Scintillation
Poor, due to lack of facet arrangement and internal haziness.
Proportions
Irregular blocky/tabular chunk with no standardized gemstone proportions.
Symmetry
Asymmetrical due to random fracture and breakage patterns.
Polish
Raw fractured surfaces with dull vitreous luster.
Fluorescence
Likely inert or indeterminate without UV testing.
Inclusions
Gas bubbles, swirl marks, and particulate matter typical of manufactured glass.
Blemishes
Surface scratches, chips, and conchoidal fracture ripples.
Origin
Man-made glass or industrial slag, synthetic origin.
Treatment Detection
No gemstone treatments detected; material is inherently artificial.
Estimated Value
Nominal / Zero commercial gemstone value (decorative or collector's specimen value only).
Certification Estimate
Cannot be certified as a gemstone by major labs (GIA, AGS, IGI) as it is not a mineral gemstone.
Investment Potential
None; holds no monetary or investment value.
Similar Diamonds
None, as this specimen is not a diamond or diamond simulants like cubic zirconia/moissanite.
Setting Suggestions
Not recommended for fine jewelry settings due to softness and lack of durability.
Care & Maintenance
Store separately to avoid scratching softer materials, clean gently with mild soap and warm water.
Interesting Facts
Green glass is frequently mistaken for rough emerald, peridot, or green diamond by untrained observers due to its vibrant color.