Not a diamond; this image displays a rough, irregular dark mineral matrix, likely slag, obsidian, or a heavily weathered rock rather than crystalline diamond rough.
Not a diamond; this image displays a rough, irregular dark mineral matrix, likely slag, obsidian, or a heavily weathered rock rather than crystalline diamond rough. · Irregular raw specimen / non-gem form
Uncut / Raw specimen Cut

Carat
Not applicable to this non-gem mineral specimen
Color
Dark gray to black opaque
Clarity
Opaque / heavily included matrix
Shape
Irregular raw specimen / non-gem form
Overall Assessment
The specimen shown in the image is not a diamond, nor is it a cut gemstone. It appears to be an irregular dark rock, slag, or mineral aggregate lacking the characteristic crystallization, adamantine luster, and optical properties of diamond.
Cut Quality
Uncut / Raw specimen
Brilliance
None (opaque and non-reflective)
Fire
None
Scintillation
None
Proportions
Not applicable
Symmetry
Irregular and asymmetrical
Polish
Unpolished natural or industrial texture
Fluorescence
None observed
Inclusions
Pores, cavities, mineral grains, and fracture lines throughout the matrix
Blemishes
Rough surface pitting and natural weathering marks
Origin
Terrestrial geological or industrial byproduct (slag)
Treatment Detection
Natural untreated matrix or industrial waste
Estimated Value
Nominal mineral specimen value (low)
Certification Estimate
Not certifiable as a gemstone by major labs like GIA or IGI
Investment Potential
None as an investment asset
Similar Diamonds
None, as this is not a diamond
Setting Suggestions
Not recommended for jewelry setting in its current form
Care & Maintenance
Standard mineral specimen care, keep dry and avoid harsh impacts
Interesting Facts
Visual appearance resembles a rough industrial material or volcanic glass rather than gem-grade carbon crystals