Non-diamond / Industrial material
Non-diamond / Industrial material · Rough / Irregular / Metallic lump
Uncut / Raw Cut

Carat
Estimated 10-20 carats (based on size relative to carpet fibers)
Color
Opaque Metallic Grey / Hematite-like luster
Clarity
Opaque (N/A)
Shape
Rough / Irregular / Metallic lump
Overall Assessment
The item pictured is not a gemstone-quality diamond. It appears to be a piece of industrial metal, lead, or a common mineral like hematite or magnetite.
Cut Quality
Uncut / Raw
Brilliance
None - Surface reflection only
Fire
None
Scintillation
None
Proportions
Asymmetrical organic form
Symmetry
N/A
Polish
N/A - Matte/Rough surface
Fluorescence
None
Inclusions
N/A - Surface is opaque
Blemishes
Visible pitting and metallic oxidation
Origin
Terrestrial mineral or synthetic industrial byproduct
Treatment Detection
None detected; appears to be raw material
Estimated Value
Negligible as a gemstone; industrial value only
Certification Estimate
Not eligible for diamond certification labs; potentially a mineral specimen
Investment Potential
None
Similar Diamonds
Black Carbonado (though much lower luster)
Setting Suggestions
Not recommended for traditional jewelry settings
Care & Maintenance
Keep dry to prevent oxidation; clean with soft brush
Interesting Facts
The object lacks the adamantine luster and crystal structure typical of carbon-based diamonds.