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

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

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

Identified on 8/26/2026