Non-Diamond / Silicate Mineral (Likely Basalt or River Rock)
Non-Diamond / Silicate Mineral (Likely Basalt or River Rock) · Natural Water-Worn / Ovoid Pebble
Uncut / Naturally Tumbled Cut
Carat
Estimated 200 - 300 carats (based on hand size)
Color
Opaque Charcoal Grey / Black
Clarity
Opaque (N/A)
Shape
Natural Water-Worn / Ovoid Pebble
Overall Assessment
This object is a naturally occurring rock, likely an igneous or metamorphic pebble, and does not possess the physical or chemical properties of a diamond.
Cut Quality
Uncut / Naturally Tumbled
Brilliance
None
Fire
None
Scintillation
None
Proportions
Natural Alluvial Shaping
Symmetry
Asymmetrical / Natural
Polish
Matte / Weathered
Fluorescence
None
Inclusions
Crystalline grains and mineral inclusions consistent with basaltic rock
Blemishes
Extensive surface abrasions and impact fractures consistent with environmental wear
Origin
Terrestrial / Fluvial (Riverbed)
Treatment Detection
None detected; natural weathered surface
Estimated Value
Minimal / No Commercial Gemstone Value
Certification Estimate
N/A - Not a Gemstone
Investment Potential
None as a gemstone
Similar Diamonds
None (Carbonado would be the closest reference, but this material is not carbonado)
Setting Suggestions
Not suitable for traditional jewelry setting
Care & Maintenance
No special care required; keep as a geological specimen
Interesting Facts
The surface scratches indicate a hardness significantly lower than diamond, as true diamond would not show this pattern of surface wear from environment exposure.