Not a diamond; appears to be industrial slag, obsidian, or a raw mineral matrix with vesicular textures.
Not a diamond; appears to be industrial slag, obsidian, or a raw mineral matrix with vesicular textures. · Rough, uncut, irregular amorphous mineral mass.
Not applicable (uncut raw specimen). Cut
Carat
Not applicable (raw, unpolished mineral matrix).
Color
Dark gray to black, opaque.
Clarity
Not applicable (opaque, heavily included/textured raw material).
Shape
Rough, uncut, irregular amorphous mineral mass.
Overall Assessment
The specimen shown in the image is not a diamond. It exhibits characteristics consistent with industrial slag or a volcanic glass/mineral matrix, lacking the crystalline structure, transparency, and optical properties of diamond.
Cut Quality
Not applicable (uncut raw specimen).
Brilliance
None (opaque material does not refract or reflect white light internally).
Fire
None.
Scintillation
None.
Proportions
Not applicable for a raw, unfaceted mineral mass.
Symmetry
Asymmetrical, natural or industrial raw form.
Polish
Raw, unpolished surface texture with pits and flow lines.
Fluorescence
Unknown without UV testing, likely none given the dark matrix.
Inclusions
Abundant internal bubbles, voids, and foreign mineral matter typical of slag or volcanic glass.
Blemishes
Surface pitting, cavities, and irregular fractures visible across the exterior.
Origin
Terrestrial industrial byproduct (slag) or volcanic origin (such as obsidian or basalt).
Treatment Detection
None applied; raw unprocessed or melted material.
Estimated Value
Minimal or nominal value as a mineral specimen or industrial byproduct.
Certification Estimate
Not certifiable as a gemstone by major gemological labs like GIA or AGS.
Investment Potential
None as an investment asset.
Similar Diamonds
None, as this is visually confirmed not to be a diamond.
Setting Suggestions
Not suitable for jewelry setting in its current raw state.
Care & Maintenance
Standard handling for mineral specimens; avoid harsh acids or impacts.
Interesting Facts
Materials resembling this are often mistaken for rough diamonds or meteorites by novices due to dark crusts and pitting.