Not a diamond; this specimen appears to be a piece of rough blue glass, synthetic spinel, or colored quartz rather than diamond.
Not a diamond; this specimen appears to be a piece of rough blue glass, synthetic spinel, or colored quartz rather than diamond. · Uncut or roughly fractured crystalline mass / Raw specimen
Not Applicable (Rough, uncut stone) Cut
Carat
Cannot be accurately determined from visual assessment alone, roughly estimated at 5-10 carats based on typical sample sizes.
Color
Deep royal blue (Fancy Dark Blue if applied to diamond standards)
Clarity
Included (Contains internal bubbles or particulate matter characteristic of glass/synthetic material)
Shape
Uncut or roughly fractured crystalline mass / Raw specimen
Overall Assessment
This specimen is visually identified as a rough piece of blue glass or synthetic material, possessing none of the physical or optical properties of a genuine diamond.
Cut Quality
Not Applicable (Rough, uncut stone)
Brilliance
Low to moderate vitreous luster, not possessing diamond-like adamantine brilliance
Fire
Minimal dispersion, lacking the high fire characteristic of diamonds
Scintillation
Poor, due to lack of standard facet arrangement
Proportions
Not Applicable for rough or non-diamond material
Symmetry
Not Applicable (Uncut rough stone)
Polish
Natural unpolished fracture surfaces
Fluorescence
Unknown without UV testing, likely inert or moderate chalky blue if synthetic
Inclusions
Gas bubbles and uneven color distribution visible
Blemishes
Surface conchoidal fractures, chips, and rough edges
Origin
Likely man-made or synthetic origin
Treatment Detection
Indications of coloration agents typical of manufactured glass or treated minerals
Estimated Value
Minimal monetary value as a decorative mineral or rough collector specimen (under $20)
Certification Estimate
Standard gemological labs (GIA, IGI) would issue a report identifying it as simulated material, glass, or non-diamond.
Investment Potential
None; holds no monetary investment value
Similar Diamonds
None, as this specimen lacks diamond properties entirely
Setting Suggestions
Not recommended for fine jewelry due to softness and non-precious nature
Care & Maintenance
Store separately to prevent scratching other softer materials; clean with mild soapy water if needed
Interesting Facts
Deep blue synthetic materials and colored glasses are frequently mistaken for valuable sapphires or blue diamonds by untrained observers.