Not a diamond; appears to be colored glass or synthetic slag material
Not a diamond; appears to be colored glass or synthetic slag material · Irregular raw fragment / unstructured
Not applicable (raw, uncut, unstructured fragment) Cut
Carat
Not applicable due to non-diamond material (estimated large mass fragment)
Color
Vivid Blue (Fancy)
Clarity
Included with gas bubbles (typical of glass)
Shape
Irregular raw fragment / unstructured
Overall Assessment
This specimen is definitively not a diamond. The visible internal gas bubbles and conchoidal fracture patterns strongly indicate man-made glass or slag.
Cut Quality
Not applicable (raw, uncut, unstructured fragment)
Brilliance
Low to moderate vitreous luster
Fire
Very low dispersion compared to diamond
Scintillation
Minimal light return due to lack of precision faceting
Proportions
Irregular shard dimensions with no standard facet proportions
Symmetry
Asymmetrical raw shard
Polish
Rough, unpolished fracture surfaces
Fluorescence
Inert to strong blue depending on UV source
Inclusions
Round gas bubbles and flow lines visible internally
Blemishes
Surface pitting, conchoidal fractures, and chips
Origin
Man-made glass or industrial slag
Treatment Detection
Colored via metallic oxides or surface coating
Estimated Value
Nominal decorative or collector value (less than $10 USD)
Certification Estimate
Not gradable by major gemological laboratories (GIA, AGS, IGI) as a diamond
Investment Potential
None
Similar Diamonds
None, as this is visually and compositionally distinct from diamond
Setting Suggestions
Not recommended for fine jewelry due to softness and fragility
Care & Maintenance
Handle with care to avoid chipping; avoid harsh chemicals
Interesting Facts
Often mistaken for raw blue rough diamond or sapphire by untrained observers due to vibrant color