Non-diamond (Likely Glass/Slag)
Non-diamond (Likely Glass/Slag) · Irregular/Rough
Uncut/Rough Cut
Carat
Unknown (size suggests 20-50 carats if it were a stone)
Color
Green (Fancy/Opaque)
Clarity
I3 / Opaque
Shape
Irregular/Rough
Overall Assessment
This material is not a diamond. The visual characteristics such as internal bubbles, waxy luster, and lack of crystal structure indicate it is likely a piece of industrial slag or green bottle glass reflecting surface light.
Cut Quality
Uncut/Rough
Brilliance
None
Fire
Low to moderate (surface play of light/iridescence)
Scintillation
Low
Proportions
Asymmetric
Symmetry
Poor/N/A
Polish
N/A
Fluorescence
None visible
Inclusions
Bubbles, flow lines, and surface pitting
Blemishes
Chipping, fractures, and heavy surface wear
Origin
Anthropogenic (Likely glass manufacture waste)
Treatment Detection
N/A (Not a diamond)
Estimated Value
Negligible/Decorative only
Certification Estimate
N/A (Would likely be rejected as a diamond)
Investment Potential
None
Similar Diamonds
None (Visuals match green slag glass)
Setting Suggestions
Specimen jar or wire wrapping for novelty
Care & Maintenance
Avoid acids and mechanical impacts
Interesting Facts
The iridescence on the surface is likely due to weathering or 'patina' common in old glass.