Not a diamond; this specimen appears to be green glass or slag material exhibiting conchoidal fracture and internal bubbles, completely distinct from crystalline diamond.
Not a diamond; this specimen appears to be green glass or slag material exhibiting conchoidal fracture and internal bubbles, completely distinct from crystalline diamond. · Rough/Raw broken chunk with irregular, conchoidal fracture surfaces.
Not applicable (uncut, raw industrial glass fragment). Cut

Carat
Not applicable for a non-gemstone glass specimen, though visually substantial in mass.
Color
Vivid Green (Fancy Intense Green appearance, but inherent to glass composition rather than diamond coloration).
Clarity
Not applicable (contains prominent internal gas bubbles and flow lines characteristic of glass).
Shape
Rough/Raw broken chunk with irregular, conchoidal fracture surfaces.
Overall Assessment
The specimen shown in the image is definitively identified as green glass, likely cullet or slag, and is not a diamond or any other precious gemstone.
Cut Quality
Not applicable (uncut, raw industrial glass fragment).
Brilliance
Vitreous reflection typical of glass rather than the high refractive brilliance of a diamond.
Fire
Very low dispersion compared to diamond or high-index simulants.
Scintillation
Limited flash due to irregular curved surfaces rather than precision-cut facets.
Proportions
Not applicable; lacks standard facet geometry, table, depth, crown, or pavilion.
Symmetry
Asymmetrical, irregular broken shard.
Polish
Raw, unpolished fracture surfaces with vitreous luster.
Fluorescence
Unknown without UV testing, though typical green glass may show inert or weak fluorescence.
Inclusions
Internal gas bubbles, flow lines, and swirling structures typical of manufactured glass.
Blemishes
Surface chips, abrasions, and conchoidal fracture ripples.
Origin
Man-made glass / industrial slag or cullet glass.
Treatment Detection
Not applicable; the material itself is artificial glass.
Estimated Value
Nominal/decorative value only; negligible monetary value as a gemstone or industrial mineral.
Certification Estimate
Not certifiable by standard gemological grading laboratories (GIA, AGS, IGI) as a diamond.
Investment Potential
None; glass has no resale or investment value as a precious gem.
Similar Diamonds
None; diamond does not naturally occur in this form, color, or with internal glass bubbles.
Setting Suggestions
Not recommended for fine jewelry due to softness and fragility of glass.
Care & Maintenance
Handle with care to avoid chipping the soft glass edges; wash with mild soap and water.
Interesting Facts
Bright green slag or recycled glass is frequently mistaken by novices for raw precious stones like emerald or green diamond due to its striking color.