Not a diamond; appears to be quartz, glass, or a synthetic imitation material showing conchoidal fracture and striations characteristic of amorphous or silicate materials
Not a diamond; appears to be quartz, glass, or a synthetic imitation material showing conchoidal fracture and striations characteristic of amorphous or silicate materials · Rough crystal / Irregular uncut specimen
Uncut / Raw specimen (Not faceted) Cut
Carat
Cannot be accurately estimated from a macro photograph, but visually substantial as a mineral specimen
Color
Colorless / Transparent
Clarity
Not applicable to gem-grade diamonds (shows heavy internal fracturing and inclusions)
Shape
Rough crystal / Irregular uncut specimen
Overall Assessment
The visual characteristics—such as the prominent conchoidal fractures, striations, and lack of octahedral diamond crystal habits—indicate that this specimen is not a diamond, but rather a rough mineral like quartz or a manufactured glass object.
Cut Quality
Uncut / Raw specimen (Not faceted)
Brilliance
Vitreous luster, limited by internal fracturing
Fire
Low dispersion compared to diamond
Scintillation
Minimal due to lack of standard facet angles
Proportions
Not applicable to rough stones
Symmetry
Asymmetrical raw crystal formation
Polish
Raw, unpolished surface with natural growth features and fracture planes
Fluorescence
Unknown without UV testing
Inclusions
Heavy internal feathering, fractures, and foreign mineral inclusions visible
Blemishes
Conchoidal fracture lines, surface striations, and chipping
Origin
Natural mineral or manufactured glass depending on exact material verification
Treatment Detection
Needs physical testing (refractive index, hardness) to rule out synthetic glass treatments or coatings
Estimated Value
Nominal value as a mineral specimen or decorative glass piece, low commercial value
Certification Estimate
Standard gemological laboratories (GIA, IGI) would issue a gemstone identification report rather than a diamond grading report, likely identifying it as quartz or glass
Investment Potential
None; this specimen holds no investment value as a gemstone
Similar Diamonds
None, as this specimen lacks diamond crystal structure and hardness
Setting Suggestions
Wire-wrapped setting if kept as a raw mineral specimen
Care & Maintenance
Avoid harsh impacts due to internal fracturing and cleavage/fracture planes
Interesting Facts
Displays prominent conchoidal fracture patterns and iridescence along stress planes