Not a diamond (appears to be optical glass or quartz crystal with conchoidal fracture)
Not a diamond (appears to be optical glass or quartz crystal with conchoidal fracture) · Irregular raw fragment / Curved shard
Poor / Uncut raw fragment Cut
Carat
N/A (Rough mineral/glass specimen, approx. 15-20 carats equivalent mass)
Color
Colorless / Transparent
Clarity
I3 / Highly included (contains internal stress fractures and particulate matter)
Shape
Irregular raw fragment / Curved shard
Overall Assessment
The specimen shown in the image is definitively not a diamond. It exhibits characteristic conchoidal fracturing, curved internal ripple marks, and optical properties more consistent with industrial glass, quartz, or slag rather than crystallized carbon.
Cut Quality
Poor / Uncut raw fragment
Brilliance
Low due to lack of standard gemstone facets
Fire
Minimal, limited to localized dispersion along internal fracture planes
Scintillation
Poor due to lack of symmetrical faceting
Proportions
Non-standard irregular shard proportions
Symmetry
Asymmetrical
Polish
Raw / Unpolished with conchoidal fracture ripples
Fluorescence
None observed
Inclusions
Internal feather fractures, strain lines, and particulate inclusions
Blemishes
Surface scratches, chips, and irregular fracture ridges
Origin
Synthetic or manufactured glass / Natural quartz crystal
Treatment Detection
None applied (raw unstructured material)
Estimated Value
Minimal (nominal value as a mineral specimen or decorative glass piece)
Certification Estimate
Not applicable for gem-grade diamond certification (would be rejected by GIA/AGS as non-diamond)
Investment Potential
None as an investment
Similar Diamonds
None (this specimen does not share characteristics with gem-quality diamonds)
Setting Suggestions
Not suitable for standard jewelry settings due to fragility and lack of gem value
Care & Maintenance
Handle with care to avoid cutting fingers on sharp edges; clean with mild soap and water
Interesting Facts
Displays prominent conchoidal fracture patterns and iridescent thin-film interference colors along internal stress planes