The material appears consistent with industrial slag or architectural glass rather than diamond; it lacks the characteristic crystal structure of natural or lab-grown diamonds.
The material appears consistent with industrial slag or architectural glass rather than diamond; it lacks the characteristic crystal structure of natural or lab-grown diamonds. · Rough / Uncut (Amorphous)
N/A (Unfaceted raw material). Cut
Carat
Undetermined; visual assessment suggests a large mass equivalent to several hundred carats if it were a gemstone.
Color
Translucent light blue with internal multi-colored reflections (diffraction/refraction).
Clarity
Included (Contains visible gas bubbles and heavy flow lines characteristic of glass).
Shape
Rough / Uncut (Amorphous)
Overall Assessment
The specimen displays diagnostic features of glass, specifically spherical bubbles and swirl marks. It is not a diamond or a gemstone-quality mineral.
Cut Quality
N/A (Unfaceted raw material).
Brilliance
Low; surface reflects light but lacks internal total internal reflection of diamond.
Fire
Very low; weak dispersion observed only at localized fracture interfaces.
Scintillation
None; lacks the light/dark contrast of a faceted gemstone.
Proportions
N/A (Vitreous conchoidal fracture patterns).
Symmetry
Poor / Asymmetrical
Polish
N/A (Natural/Raw fracture surfaces).
Fluorescence
Indeterminate from image; possibly none or milky under UV due to glass composition.
Inclusions
Abundant spherical gas bubbles and 'swirl' or 'reams' marks common in molten glass.
Blemishes
Heavy surface scuffing and impact chips on fracture edges.
Origin
Man-made; likely a byproduct of glass manufacturing or industrial slag.
Treatment Detection
N/A (Synthetic/Non-crystalline material).
Estimated Value
Minimal/Decorative value only ($5 - $20 USD).
Certification Estimate
Unlikely to be certified by GIA/AGS as it does not appear to be a diamond; IGI may certify as 'Glass'.
Investment Potential
None; this is a decorative material with no resale value in the gem market.
Similar Diamonds
None; this does not share physical properties with diamonds.
Setting Suggestions
Wire wrapping for decorative/hobbyist jewelry or use as a paperweight.
Care & Maintenance
Avoid high heat or sudden temperature changes which may cause glass to shatter; clean with warm soapy water.
Interesting Facts
Glass is often mistaken for rough diamond by novices due to its transparency and conchoidal fracture, but gas bubbles are a definitive 'tell' of its non-crystalline nature.