Not a diamond; appears to be colored glass or synthetic blue material
Not a diamond; appears to be colored glass or synthetic blue material · Rough or crudely cut rectangular bar
Poor/Unrefined Cut
Carat
Cannot be reliably determined visually without exact density and dimensions, roughly estimated over 5 carats equivalent
Color
Deep Fancy Blue
Clarity
Included with internal particulate clouds and bubbles
Shape
Rough or crudely cut rectangular bar
Overall Assessment
The specimen shown is an elongated blue material—most consistent with ornamental glass or synthetic simulants—rather than a genuine diamond.
Cut Quality
Poor/Unrefined
Brilliance
Low due to material composition and poor polish
Fire
Minimal to none, lacking the dispersion properties of diamond
Scintillation
Weak and fragmented
Proportions
Irregular elongated rectangular block with uneven thickness
Symmetry
Poor
Polish
Poor, matte or rough surface finish visible
Fluorescence
Strong blue under certain light conditions
Inclusions
Gas bubbles and internal particulate clouds typical of manufactured glass
Blemishes
Surface abrasions and uneven edges
Origin
Man-made / Manufactured material
Treatment Detection
Likely colored throughout via chemical additives in glass production
Estimated Value
Nominal decorative value (low monetary value)
Certification Estimate
Standard gemological testing (refractive index, specific gravity) would identify this as non-diamond material
Investment Potential
None as a gem investment
Similar Diamonds
None, as this specimen lacks diamond optical and physical properties
Setting Suggestions
Not recommended for fine jewelry settings due to material softness
Care & Maintenance
Store separately to avoid scratching softer surfaces
Interesting Facts
Bright blue coloration often achieved in ornamental glass through cobalt or copper doping