Common Quartz or Slag Glass (Non-Diamond)
Common Quartz or Slag Glass (Non-Diamond) · Rough / Elongated Columnar
Uncut / Raw Cut
Carat
Estimated 5.0 - 10.0 carats (based on size relative to finger)
Color
Translucent to colorless with brownish/clay surface staining
Clarity
Included (I-grade equivalent or lower)
Shape
Rough / Elongated Columnar
Overall Assessment
This specimen is not a diamond. It lacks the isometric crystal structure and refractive properties characteristic of carbon jewels. It is most likely a piece of water-worn quartz or industrial glass debris.
Cut Quality
Uncut / Raw
Brilliance
Low / Vitreous luster
Fire
None visible; lacks the high refractive index of diamond
Scintillation
Weak; reflections are surface-level rather than internal
Proportions
Elongated, irregular vertical growth
Symmetry
Asymmetric / Natural rough state
Polish
Natural striations; no industrial polish
Fluorescence
None likely; typical for common quartz
Inclusions
Heavy internal fractures, veining, and earthy inclusions
Blemishes
Surface pitting, impact marks, and dirt/clay residue
Origin
Alluvial / Terrestrial (Potentially creek-bed quartz)
Treatment Detection
No treatments detected; appears in natural/found state
Estimated Value
Minimal ($1 - $10 as a mineral specimen)
Certification Estimate
N/A (Not suitable for diamond grading labs like GIA)
Investment Potential
Negligible
Similar Diamonds
None; this specimen mimics common industrial-grade rock crystal
Setting Suggestions
Not recommended for fine jewelry; possible wire-wrap for hobbyist use
Care & Maintenance
Rinse with water to remove surface debris; avoid high impact
Interesting Facts
Common quartz is often mistaken for diamond by the untrained eye due to its transparency, though it lacks diamond's hardness and light-handling properties.