Natural (Rough Mineral Specimen, potentially Quartz/Glass rather than gem-quality diamond)
Natural (Rough Mineral Specimen, potentially Quartz/Glass rather than gem-quality diamond) · Uncut / Rough Crystalline Fragment with Conchoidal Fracture
Not Applicable (Rough, uncut stone) Cut
Carat
Estimated 15-20 carats (based on scale and visual size, though specific gravity testing required)
Color
Colorless with heavy surface contamination (brown/reddish mineral deposits)
Clarity
I3 (Heavy inclusions, internal fracturing, and structural flaws)
Shape
Uncut / Rough Crystalline Fragment with Conchoidal Fracture
Overall Assessment
This specimen is a raw, heavily fractured mineral chunk with conchoidal fractures and trapped soil/matrix. It lacks the characteristic octahedral or dodecahedral crystal habits and adamantine luster of a diamond, appearing more consistent with quartz, topaz, or specialized industrial glass.
Cut Quality
Not Applicable (Rough, uncut stone)
Brilliance
Poor due to heavy internal fracturing and lack of facet alignment
Fire
Minimal to none in current rough state
Scintillation
Poor, light escapes through numerous fractures rather than reflecting off facets
Proportions
Not Applicable for rough stones
Symmetry
Asymmetrical (Natural rough formation)
Polish
None (Raw, unpolished surface with conchoidal fracture patterns)
Fluorescence
Undetermined without UV testing
Inclusions
Extensive internal fracturing, feathering, and trapped mineral inclusions
Blemishes
Surface chips, natural cavities, and adhering earthy matrix
Origin
Alluvial or primary rock matrix deposit
Treatment Detection
No obvious artificial treatments detected; entirely natural rough state with debris
Estimated Value
Nominal mineral specimen value ($10 - $50 depending on exact mineral composition)
Certification Estimate
Would not receive a standard GIA diamond grading report due to raw, industrial, or non-diamond mineral nature
Investment Potential
None as an investment gem; strictly a mineral specimen or educational curio
Similar Diamonds
Industrial-grade boart or heavily fractured rough quartz/glass slag
Setting Suggestions
Wire-wrapped rough mineral specimen pendant or educational display piece
Care & Maintenance
Handle with care to prevent further fracturing along existing cleavage planes; clean gently with warm soapy water
Interesting Facts
The prominent conchoidal fracture patterns and glassy luster strongly suggest this is a piece of industrial glass, slag, or quartz rather than a crystallographically perfect octahedral diamond rough.