Non-Diamond (Likely Industrial Glass, Slag, or Cullet)
Non-Diamond (Likely Industrial Glass, Slag, or Cullet) · Uncut/Rough (Amorphous Fragment)
N/A (Rough fragment with conchoidal fracturing) Cut
Carat
Estimated 20-40 carats (based on scale relative to substrate)
Color
Deep Cobalt Blue (Opaque/Translucent)
Clarity
Opaque (Does not meet gemstone clarity standards)
Shape
Uncut/Rough (Amorphous Fragment)
Overall Assessment
This specimen is not a diamond. The saturated cobalt color, surface texture, and fracture patterns identify it as glass or industrial slag.
Cut Quality
N/A (Rough fragment with conchoidal fracturing)
Brilliance
Minimal (Vitreous surface reflection only)
Fire
None
Scintillation
None
Proportions
Irregular jagged block
Symmetry
N/A
Polish
N/A (Natural jagged surface with vitreous luster)
Fluorescence
None observed
Inclusions
Internal swirling/gas bubbles typical of glass; surface fracturing
Blemishes
Severe chips, sharp edges, and impact marks
Origin
Man-made industrial waste or decorative glass cullet
Treatment Detection
Artificial coloring (likely cobalt)
Estimated Value
Nominal / Low (Ornamental value only; less than $5.00)
Certification Estimate
Ineligible for major diamond laboratories (GIA/AGS)
Investment Potential
None
Similar Diamonds
None (No resemblance to Type IIb blue diamonds)
Setting Suggestions
Wire wrapping for decorative/novelty jewelry
Care & Maintenance
Avoid contact with hard surfaces; edges are sharp and may cause cuts
Interesting Facts
The conchoidal fracture pattern seen on the top face is a hallmark of amorphous solids like glass, rather than the octahedral cleavage of diamonds.