Rough natural crystal, potentially quartz or similar mineral rather than gem-quality diamond based on the conchoidal fracture and surface striations.
Rough natural crystal, potentially quartz or similar mineral rather than gem-quality diamond based on the conchoidal fracture and surface striations. · Uncut raw crystal fragment with irregular elongated form
Not applicable (uncut raw specimen) Cut
Carat
Estimated 2.5 - 3.5 carats based on visual size relative to fingers
Color
Near colorless to very faint brown/yellow tint
Clarity
I2 - I3 (heavy inclusions, natural surface features, fractures)
Shape
Uncut raw crystal fragment with irregular elongated form
Overall Assessment
An interesting raw crystal specimen held in fingers, requiring professional gemological testing to definitively confirm mineral species (diamond vs. quartz/topaz), though visual characteristics suggest a non-diamond rough mineral.
Cut Quality
Not applicable (uncut raw specimen)
Brilliance
Low due to lack of facet geometry and surface wear
Fire
Minimal due to raw, unfaceted state
Scintillation
None; surface scattering rather than patterned sparkle
Proportions
Irregular raw specimen with no standard table or depth proportions
Symmetry
Asymmetrical raw crystal formation
Polish
Natural unpolished crystal faces and fracture surfaces
Fluorescence
Unknown without UV testing (likely none to faint)
Inclusions
Heavy internal feather fractures, cloudiness, and mineral inclusions typical of raw matrix
Blemishes
Natural surface etch channels, growth lines, and rough fracture edges
Origin
Alluvial deposit or rough matrix extraction site
Treatment Detection
No signs of artificial treatment; completely natural raw state
Estimated Value
Nominal mineral specimen value (low), highly dependent on exact mineral identification.
Certification Estimate
Unlikely to be certified by major labs like GIA as a diamond; would require mineralogical testing (Raman spectroscopy) to confirm identity.
Investment Potential
None as an investment gemstone; strictly a mineral specimen curiosity
Similar Diamonds
Comparable to low-grade industrial rough diamond or raw quartz/topaz crystal specimens
Setting Suggestions
Wire-wrapped raw crystal pendant or organic bezel setting to preserve raw aesthetic
Care & Maintenance
Avoid harsh impacts due to internal fractures; clean gently with warm soapy water and a soft brush
Interesting Facts
Raw crystals often display natural growth features like triangular etch marks (trigons) if diamond, though this specimen strongly resembles quartz due to the conchoidal fracture patterns.