Not a diamond; appears to be raw quartz crystal or slag glass with conchoidal fracture
Not a diamond; appears to be raw quartz crystal or slag glass with conchoidal fracture · Rough crystal / Irregular fragment
Uncut / Raw Cut
Carat
Not applicable for gem-quality diamond (rough mineral specimen)
Color
Colorless with surface staining
Clarity
Included / Heavily fractured
Shape
Rough crystal / Irregular fragment
Overall Assessment
The specimen shown in the image lacks the characteristic crystal habit, hardness, optical properties, and high refractive index of a diamond. It is visually consistent with raw quartz or industrial glass slag.
Cut Quality
Uncut / Raw
Brilliance
Low due to lack of standard facet proportions
Fire
Low dispersion typical of quartz or glass
Scintillation
Minimal
Proportions
Non-standard rough geometry
Symmetry
Asymmetrical rough
Polish
Unpolished
Fluorescence
Unknown without UV testing
Inclusions
Internal fractures and particulate matter
Blemishes
Surface pitting and rough edges
Origin
Natural mineral rough or manufactured cullet glass
Treatment Detection
None detected
Estimated Value
Nominal value as a mineral specimen or decorative stone
Certification Estimate
Standard gemological laboratories (GIA/AGS) would not certify this as a diamond
Investment Potential
None as an investment gemstone
Similar Diamonds
None, as this is not diamond material
Setting Suggestions
Wire-wrapped rough stone setting
Care & Maintenance
Standard cleaning with warm soapy water and a soft brush
Interesting Facts
Shows clear conchoidal fracture patterns characteristic of brittle materials like quartz or glass