Not a diamond; appears to be raw quartz crystal or glass slag due to conchoidal fracture patterns and lack of standard diamond crystal habit.
Not a diamond; appears to be raw quartz crystal or glass slag due to conchoidal fracture patterns and lack of standard diamond crystal habit. · Irregular / Raw fragment
Not applicable (Rough, unpolished mineral fragment with natural conchoidal fractures) Cut

Carat
Cannot accurately determine carat weight for non-diamond or raw mineral material visually, but estimated substantial physical weight.
Color
Colorless / Transparent
Clarity
Not applicable (Mineral specimen with prominent internal stress fractures and inclusions)
Shape
Irregular / Raw fragment
Overall Assessment
The specimen shown is definitively not a diamond. Its physical characteristics, including conchoidal fracture lines and surface texture, strongly point toward natural quartz or industrial glass slag.
Cut Quality
Not applicable (Rough, unpolished mineral fragment with natural conchoidal fractures)
Brilliance
Low to moderate vitreous luster, not possessing true diamond adamantine brilliance
Fire
Very low dispersion compared to diamond
Scintillation
Minimal, due to lack of standard gemstone facet arrangement
Proportions
Not applicable to raw mineral fragments
Symmetry
Asymmetrical (Natural cleavage and fracture)
Polish
Unpolished / Raw
Fluorescence
Unknown without UV testing
Inclusions
Prominent internal stress lines, linear fractures, and minor mineral deposits visible
Blemishes
Surface scratches, chipped edges, and rough fracture zones
Origin
Natural quartz or anthropogenic glass slag
Treatment Detection
No treatments detected; raw unprocessed material
Estimated Value
Minimal monetary value as a decorative mineral specimen or piece of glass
Certification Estimate
None; not a gemstone subject to standard grading by GIA or IGI
Investment Potential
None; purely decorative or educational specimen value
Similar Diamonds
None, as this is visually identified as quartz or glass rather than diamond
Setting Suggestions
Not suitable for jewelry setting due to low hardness and fragile structure
Care & Maintenance
Handle with care to avoid chipping sharp edges; clean with mild soap and water
Interesting Facts
Displays clear conchoidal fractures typical of brittle amorphous solids like glass or crystalline quartz.