Probable Glass or Quartz (Non-diamond)
Probable Glass or Quartz (Non-diamond) · Rough/Uncut (Irregular)
None (Rough material) Cut
Carat
Estimated 2.0 - 5.0 carats based on finger scale
Color
Colorless with slight internal yellow/brown tinting
Clarity
Equivalent to Included (I1-I3) due to numerous fractures
Shape
Rough/Uncut (Irregular)
Overall Assessment
The specimen does not exhibit the optical properties, crystal habit, or luster of a diamond. It appears to be a piece of common crystalline quartz or glass fragment.
Cut Quality
None (Rough material)
Brilliance
Low; lacks the refractive index of a diamond
Fire
Minimal; slight rainbow effect likely due to internal refraction in cracks
Scintillation
Poor; no faceted light return observed
Proportions
N/A (Rough)
Symmetry
N/A (Rough)
Polish
N/A (Natural/Fractured surface)
Fluorescence
Indeterminate from image
Inclusions
Conchoidal fractures, internal veining, and surface pitting
Blemishes
Deep jagged cracks and irregular surface textures
Origin
Terrestrial (Likely silica-based mineral or industrial glass)
Treatment Detection
None apparent; appears naturally or mechanically broken
Estimated Value
Minimal (Specimen value only)
Certification Estimate
Unlikely to be certified by GIA/AGS as a gemstone
Investment Potential
None
Similar Diamonds
Compare to rough quartz or slag glass rather than diamond
Setting Suggestions
Not suitable for jewelry without professional cutting/faceting
Care & Maintenance
Handle with care to avoid further splintering along fracture lines
Interesting Facts
The conchoidal (shell-like) fracture patterns are highly characteristic of glass or quartz rather than the octahedral cleavage found in diamonds.