Non-Diamond (Likely Lapis Lazuli or glass)
Non-Diamond (Likely Lapis Lazuli or glass) · Rough / Uncut / Irregular
N/A (Rough/Uncut) Cut
Carat
Estimated 2 to 4 carats based on size relative to carpet fibers
Color
Opaque Cobalt Blue / Ultramarine
Clarity
Opaque (Non-gem grade)
Shape
Rough / Uncut / Irregular
Overall Assessment
The object in the image is not a diamond. It is an opaque, blue, rough mineral fragment consistent with Lapis Lazuli or a piece of industrial glass/ceramic slag.
Cut Quality
N/A (Rough/Uncut)
Brilliance
Zero (Opaque material)
Fire
Zero (No light dispersion)
Scintillation
None
Proportions
N/A
Symmetry
Poor / Irregular
Polish
Matte / Earthy / Unpolished
Fluorescence
None visible in current lighting
Inclusions
White calcite veins and possible pyrite specks visible on surface
Blemishes
Severe fractures and surface abrasions consistent with rough stone
Origin
Likely Afghanistan (if Lapis) or manufactured (if glass)
Treatment Detection
Possibly dyed or reconstituted; appears to be raw mineral
Estimated Value
Minimal (Specimen value $1 - $5)
Certification Estimate
Not applicable; not a gradable diamond
Investment Potential
None
Similar Diamonds
None; this does not resemble a diamond (natural or lab)
Setting Suggestions
Wire wrap or rough-stone pendant
Care & Maintenance
Keep away from acids and ultrasonic cleaners; handle as a soft mineral
Interesting Facts
The deep blue color and white calcite inclusions are diagnostic features of Lapis Lazuli, a rock consisting mainly of Lazurite.