Not a diamond; this specimen appears to be optical glass, quartz, or another crystalline material exhibiting conchoidal fracture and surface striations inconsistent with natural diamond crystal habit.
Not a diamond; this specimen appears to be optical glass, quartz, or another crystalline material exhibiting conchoidal fracture and surface striations inconsistent with natural diamond crystal habit. · Raw crystal fragment / Irregular rough slice
Not applicable (Rough, unfaceted specimen) Cut
Carat
Estimated 3.00 - 5.00 carats equivalent by volume (if denser material)
Color
Colorless / Near colorless
Clarity
Included / SI equivalent due to internal fracture lines and surface irregularities
Shape
Raw crystal fragment / Irregular rough slice
Overall Assessment
Visual analysis indicates this specimen is not a diamond. It lacks the crystal habit, adamantine luster, and optical properties characteristic of diamond, resembling instead a piece of optical glass or raw quartz.
Cut Quality
Not applicable (Rough, unfaceted specimen)
Brilliance
Low to moderate vitreous luster, not possessing diamond adamantine luster
Fire
Minimal dispersion compared to diamond
Scintillation
Poor due to lack of facet geometry
Proportions
Irregular proportions with no standard table, crown, or pavilion angles
Symmetry
Asymmetrical rough fragment
Polish
Unpolished natural/raw surfaces with conchoidal fracture patterns
Fluorescence
Indeterminate from visual inspection
Inclusions
Internal fracture planes and stress lines visible throughout
Blemishes
Surface striations, chipped edges, and uneven cleavage planes
Origin
Synthetic or geological quartz/glass material
Treatment Detection
No advanced treatments detected, likely manufactured or natural non-precious mineral
Estimated Value
Minimal (decorative mineral specimen or glass piece value)
Certification Estimate
Standard gemological laboratories (GIA, IGI) would issue a report identifying this as non-diamond material (e.g., quartz or glass)
Investment Potential
None as an investment gemstone
Similar Diamonds
None, as this material is fundamentally distinct from diamond
Setting Suggestions
Wire-wrapped or organic bezel setting if used as a raw mineral specimen jewelry piece
Care & Maintenance
Standard gentle cleaning with mild soap and warm water; avoid impact as this material may fracture easily
Interesting Facts
The surface features prominent conchoidal fractures, which are characteristic of brittle materials like glass and quartz breaking under stress