Not a diamond; this is a blue glass or synthetic material mimicking a raw mineral crystal.
Not a diamond; this is a blue glass or synthetic material mimicking a raw mineral crystal. · Rough elongated crystal bar
Uncut / Rough specimen Cut
Carat
Estimated around 3.5 to 5.0 carats equivalent weight based on visual size
Color
Vivid Cobalt Blue
Clarity
I3 (Inclusions and internal fractures are highly visible)
Shape
Rough elongated crystal bar
Overall Assessment
The specimen displayed is not a diamond nor a precious gemstone; it exhibits characteristics strongly indicative of blue glass or industrial slag with conchoidal fracturing.
Cut Quality
Uncut / Rough specimen
Brilliance
Low due to lack of standard facet alignment and material composition
Fire
Minimal dispersion, typical of colored glass rather than high-refractive gemstones
Scintillation
Poor due to irregular raw surfaces
Proportions
Elongated prismatic form
Symmetry
Irregular raw crystal shape
Polish
Unpolished, rough surface texture with conchoidal fractures
Fluorescence
Unknown without UV testing
Inclusions
Large internal bubbles, fractures, and foreign particulate matter visible
Blemishes
Surface chips, rough patches, and conchoidal fracture marks
Origin
Synthetic / Man-made glass
Treatment Detection
Colored glass composition
Estimated Value
Minimal monetary value (novelty or decorative specimen)
Certification Estimate
Not certifiable as a genuine diamond by major labs like GIA
Investment Potential
None
Similar Diamonds
None, as this is not a diamond
Setting Suggestions
Wire-wrapped or bezel setting if used for craft or costume jewelry
Care & Maintenance
Standard gentle cleaning with mild soap and water, avoid harsh impacts
Interesting Facts
Vivid blue glass pieces like this are often sold as rough crystals or mineral specimens to untrained buyers