Likely Non-Diamond (Glass or Quartz)
Likely Non-Diamond (Glass or Quartz) · Rough/Broken Shard
Uncut/Rough Cut
Carat
Estimated 10-20 carats based on visual size
Color
Colorless to Faint Gray/Blue (due to lighting)
Clarity
Included/Translucent
Shape
Rough/Broken Shard
Overall Assessment
This material appears to be a piece of glass cullet or a common silicate mineral rather than a diamond. It lacks the internal structure, refractive index, and luster required for diamond identification.
Cut Quality
Uncut/Rough
Brilliance
Low; shows vitreous luster rather than adamantine
Fire
None visible; lacks the dispersion characteristic of diamond
Scintillation
Low/Negligible
Proportions
Irregular shard with no geometric proportions
Symmetry
N/A (Rough/Irregular)
Polish
N/A (Rough)
Fluorescence
Cannot determine without UV light
Inclusions
Visible internal fractures, internal flow lines, and conchoidal features
Blemishes
Heavy surface abrasions and jagged edges
Origin
Likely industrial glass or common silica mineral
Treatment Detection
None detected; appears to be raw waste material
Estimated Value
Negligible market value as a gemstone
Certification Estimate
Unlikely to be certified by major diamond labs (GIA/AGS)
Investment Potential
Zero investment potential
Similar Diamonds
No similarity to faceted diamonds; resembles glass cullet
Setting Suggestions
Not suitable for traditional jewelry setting
Care & Maintenance
Handle with care to avoid cuts from sharp edges
Interesting Facts
The specimen exhibits conchoidal fracturing, which is typical of glass or quartz but not the octahedral cleavage typical of natural diamond.