Not a diamond (appears to be weathered glass or quartz)
Not a diamond (appears to be weathered glass or quartz) · Irregular / Raw fragment
Poor / Uncut fragment Cut
Carat
Not applicable (glass/mineral shard)
Color
Colorless / Clear with surface wear
Clarity
Included / Heavily flawed due to weathering and fractures
Shape
Irregular / Raw fragment
Overall Assessment
The specimen shown in the image is not a diamond. Based on the irregular shape, surface striations, and structural appearance, it is likely a fragment of weathered glass, bottle neck, or common quartz crystal rather than a precious gemstone.
Cut Quality
Poor / Uncut fragment
Brilliance
Low due to surface wear and non-diamond refractive index
Fire
Very low dispersion compared to diamond
Scintillation
Minimal, limited to light reflection off worn facets or fractures
Proportions
Non-standard irregular fragment
Symmetry
Poor / Asymmetrical shard
Polish
Poor / Rough, weathered, and scratched surface
Fluorescence
Unknown without UV testing
Inclusions
Internal stress fractures, bubbles typical of glass, or mineral inclusions
Blemishes
Numerous surface scratches, chips, and abrasion marks
Origin
Terrestrial anthropogenic (glass) or natural quartz shard
Treatment Detection
N/A
Estimated Value
Nominal / Zero commercial jewelry value
Certification Estimate
None (not a gemstone subject to grading by GIA, AGS, or IGI)
Investment Potential
None
Similar Diamonds
None, as this is visually identified as glass or non-diamond material
Setting Suggestions
Not suitable for jewelry setting in its current state
Care & Maintenance
Handle with care to avoid cuts from sharp broken edges
Interesting Facts
The surface texture shows extensive wear and scratching, indicating it has likely been tumbled in soil or water over a long period.