Likely Non-Diamond (Glass or Synthetic Crystal)
Likely Non-Diamond (Glass or Synthetic Crystal) · Rough / Uncut (Irregular Shape)
Not Applicable (Rough) Cut
Carat
Estimated 10-25 carats based on visual scale
Color
Likely Colorless with blueish/grayish tint
Clarity
Included (visible conchoidal fractures and bubbles)
Shape
Rough / Uncut (Irregular Shape)
Overall Assessment
This specimen appears to be a piece of synthetic glass or a low-value mineral rather than a diamond. The presence of rounded bubbles and wave-like surface textures is inconsistent with the crystalline structure of a natural diamond.
Cut Quality
Not Applicable (Rough)
Brilliance
Low (lack of faceted light return)
Fire
Low (minimal spectral dispersion)
Scintillation
Low (mostly surface reflection)
Proportions
Variable/Deep
Symmetry
None (Asymmetric)
Polish
Natural vitreous luster
Fluorescence
Indeterminate without UV source
Inclusions
Gas bubbles (suspected), internal stress fractures, and heavy veining
Blemishes
Conchoidal fracturing (shell-like chips), surface abrasions
Origin
Likely synthetic glass or a non-crystalline geological byproduct
Treatment Detection
None detected; appears to be raw industrial or synthetic material
Estimated Value
$1 - $50 (assumed non-diamond material)
Certification Estimate
Unlikely to be certified by GIA/AGS as a diamond; GIA Colored Stone/Material report possible
Investment Potential
None (Likely decorative or industrial material)
Similar Diamonds
Indistinguishable from industrial glass or rough quartz; unlike high-quality rough diamond
Setting Suggestions
Not recommended for jewelry setting in current state; suitable for study or collection
Care & Maintenance
Avoid high heat or sudden temperature changes to prevent further fracturing
Interesting Facts
The shell-like 'conchoidal' fractures visible on the surface are highly characteristic of glass or quartz rather than the octahedral cleavage of a diamond.