Not a diamond; this is a piece of transparent glass or quartz crystal with visible conchoidal fracture lines and surface wear, showing no crystalline octahedral habit characteristic of natural diamonds.
Not a diamond; this is a piece of transparent glass or quartz crystal with visible conchoidal fracture lines and surface wear, showing no crystalline octahedral habit characteristic of natural diamonds. · Irregular / Raw Crystalline Fragment
Not Applicable (uncut, raw, or manufactured glass fragment) Cut
Carat
Estimated at over 15.0 carats based on sheer visual volume, though invalid as a gemstone.
Color
Colorless
Clarity
Included / Heavily flawed due to internal bubbles, flow lines, and debris.
Shape
Irregular / Raw Crystalline Fragment
Overall Assessment
This specimen is definitively not a diamond. Visual examination reveals smooth, curved fracture lines (conchoidal fractures) and internal flow/bubble patterns characteristic of glass rather than the crystal faces and straight cleavage planes of a diamond or even natural quartz.
Cut Quality
Not Applicable (uncut, raw, or manufactured glass fragment)
Brilliance
Low, vitreous luster rather than adamantine diamond luster.
Fire
Minimal to none; lacks the high dispersion characteristic of diamond.
Scintillation
Poor due to lack of facet arrangement.
Proportions
Non-standard irregular fragment
Symmetry
Poor / Asymmetrical
Polish
Rough / Natural weathered surface with manufacturing/molding lines
Fluorescence
None to Faint
Inclusions
Internal gas bubbles, flow lines, and particulate matter typical of glass or low-grade quartz.
Blemishes
Surface scratches, chips, abrasions, and conchoidal fractures.
Origin
Man-made glass object or natural quartz crystal fragment.
Treatment Detection
No gemstone treatments detected; physical characteristics indicate melted or molded glass rather than a cut gemstone.
Estimated Value
Nominal / Zero commercial gemstone value (decorative or industrial scrap glass value only).
Certification Estimate
Cannot be certified as a diamond; standard gemological laboratories (GIA, AGS, IGI) would issue a report identifying it as glass or quartz.
Investment Potential
None
Similar Diamonds
None, as this material has entirely different physical and optical properties from diamond.
Setting Suggestions
Not recommended for jewelry setting due to softness and lack of durability.
Care & Maintenance
Standard cleaning with mild soap and water, though delicate handling is advised to prevent further chipping.
Interesting Facts
The curved lines visible on the surface are conchoidal fracture marks, which are typical of amorphous materials like glass when broken.