Not a diamond; this image displays intensely blue-tinted glass or a synthetic blue material, lacking the optical and structural properties of a genuine diamond.
Not a diamond; this image displays intensely blue-tinted glass or a synthetic blue material, lacking the optical and structural properties of a genuine diamond. · Irregular fragment or abstract blue glass piece, not a standard faceted gemstone shape.
Not applicable; industrial or decorative glass fragment. Cut

Carat
Not applicable as this is not a diamond or standard gemstone.
Color
Deep Fancy Blue (though characteristic of colored glass rather than a naturally occurring fancy colored diamond).
Clarity
Not applicable to glass, but shows internal gas bubbles and flow lines typical of manufactured glass.
Shape
Irregular fragment or abstract blue glass piece, not a standard faceted gemstone shape.
Overall Assessment
The specimen shown is a piece of vibrant blue glass or synthetic material, not a diamond. It possesses no gemological value as a diamond.
Cut Quality
Not applicable; industrial or decorative glass fragment.
Brilliance
Low brilliance, characteristic of glass rather than high-refractive-index diamond or diamond simulant.
Fire
Minimal dispersion, lacking the strong rainbow flashes seen in diamonds or moissanite.
Scintillation
Poor sparkle and play of light due to non-faceted, non-optimized surfaces.
Proportions
Not applicable; lacks standard gemstone facet proportions.
Symmetry
Irregular and asymmetric.
Polish
Uneven surface polish with visible casting or fracturing lines.
Fluorescence
Indeterminate visually from standard lighting without UV testing.
Inclusions
Contains internal spherical gas bubbles and minor impurities typical of glass manufacturing.
Blemishes
Surface scratches, chips, and uneven texture.
Origin
Man-made glass.
Treatment Detection
Colored via metallic oxides or surface tinting standard in glass production.
Estimated Value
Nominal value as decorative glass or raw material.
Certification Estimate
Cannot be certified by gemological grading laboratories like GIA or AGS as a diamond.
Investment Potential
None.
Similar Diamonds
None, as this material is entirely unrelated to diamond.
Setting Suggestions
Not recommended for fine jewelry due to low hardness and fragility.
Care & Maintenance
Handle with care to avoid chipping; clean with mild soap and water.
Interesting Facts
Cobalt blue glass has historically been used to imitate valuable blue gemstones such as sapphire.