Pseudo-Diamond / Likely Glass or Quartz
Pseudo-Diamond / Likely Glass or Quartz · Rough / Uncut (Natural crystal form or fragment)
N/A (Rough/Uncut) Cut
Carat
Estimated 20-40 carats based on finger scale
Color
Colorless with slight grey undertones
Clarity
Included (I1-I3 equivalent due to fractures)
Shape
Rough / Uncut (Natural crystal form or fragment)
Overall Assessment
This item displays conchoidal fracturing and internal rainbows typical of glass or quartz rather than the octahedral cleavage of a diamond.
Cut Quality
N/A (Rough/Uncut)
Brilliance
Low (Diffused surface reflection)
Fire
High (Spectral dispersion caused by internal fractures/rainbow effect)
Scintillation
Low to none due to lack of facets
Proportions
Non-geometric (Amorphous/Rough)
Symmetry
Poor (Irregular raw form)
Polish
N/A (Natural/Raw surface)
Fluorescence
Indeterminate from image
Inclusions
Large internal cleavage planes and fracture lines
Blemishes
Conchoidal fracturing and surface abrasions
Origin
Geological byproduct or industrial waste glass
Treatment Detection
None detected; appears to be raw material
Estimated Value
Minimal ($5 - $20 as a specimen)
Certification Estimate
Unlikely to be certified as a diamond by GIA/IGI
Investment Potential
None (Decorative/Specimen value only)
Similar Diamonds
Rock crystal quartz or Herkimer diamonds
Setting Suggestions
Wire wrap or specimen display case
Care & Maintenance
Avoid impact; fractures may expand under stress
Interesting Facts
The rainbow patterns are caused by thin-film interference in fractures