Natural Mineral Crystal (likely Quartz or generic silicate material, not gemstone-grade diamond)
Natural Mineral Crystal (likely Quartz or generic silicate material, not gemstone-grade diamond) · Rough Uncut Specimen / Irregular Fragment
Not Applicable (Uncut rough stone) Cut
Carat
Estimated > 5.0 carats based on physical dimensions, though material is non-diamond
Color
Colorless / Translucent with minor inclusions
Clarity
I3 (Heavy inclusions, fractures, and surface irregularities)
Shape
Rough Uncut Specimen / Irregular Fragment
Overall Assessment
The specimen shown in the image lacks the characteristic crystal habit, high refractive index, and adamantine luster of a genuine diamond. It appears to be a raw mineral fragment or crystal chunk requiring proper gemological testing (such as a thermal conductivity probe) to confirm exact species, though visually it does not qualify as diamond.
Cut Quality
Not Applicable (Uncut rough stone)
Brilliance
Low due to lack of standard facet geometry and raw surface finish
Fire
Minimal dispersion due to material properties and lack of proper pavilion/crown angles
Scintillation
Poor, lacking distinct facets to return light effectively
Proportions
Non-standard rough crystal proportions
Symmetry
Poor / Asymmetrical natural formation
Polish
Raw / Natural cleavage and fracture surfaces
Fluorescence
Unknown without UV testing
Inclusions
Internal fractures, dark mineral inclusion pockets, and feathered flaws
Blemishes
Natural surface pitting, conchoidal fracture marks, and edge chips
Origin
Terrestrial mineral deposit
Treatment Detection
No treatments detected; completely raw and untreated
Estimated Value
Nominal mineral specimen value (less than $10 USD)
Certification Estimate
Not eligible for GIA or AGS diamond certification; could be analyzed by educational or mineralogical labs
Investment Potential
Negligible financial investment potential; suitable only for mineral collections or educational purposes
Similar Diamonds
None, as this is visually identified as quartz or raw silicate rock rather than diamond
Setting Suggestions
Wire-wrapped rough mineral setting or custom bezel for specimen display
Care & Maintenance
Store carefully to avoid edge chipping; clean gently with warm soapy water and a soft brush
Interesting Facts
Displays classic conchoidal fracture patterns typical of silicate minerals like quartz or glass-like geological formations