Not a diamond; this is a mineral specimen, likely labradorite or another feldspar given the surface striations and chatoyant/sheen characteristics.
Not a diamond; this is a mineral specimen, likely labradorite or another feldspar given the surface striations and chatoyant/sheen characteristics. · Freeform cabochon or rough tumbled stone
Not applicable (uncut or roughly polished mineral) Cut

Carat
Not applicable to gem-quality faceted diamonds; estimated weight is several carats as a mineral specimen.
Color
Not applicable (opaque to translucent grey/green/brown with dark inclusions)
Clarity
Not applicable (heavy inclusions and internal fracturing present)
Shape
Freeform cabochon or rough tumbled stone
Overall Assessment
The specimen in the image is definitively not a diamond. It is an opaque mineral or raw crystal rough displaying natural internal fractures and surface weathering.
Cut Quality
Not applicable (uncut or roughly polished mineral)
Brilliance
Poor to none (opaque mineral)
Fire
None
Scintillation
Limited to potential surface sheen depending on specific mineral type
Proportions
Non-standard freeform
Symmetry
Irregular
Polish
Low polish or rough tumbled
Fluorescence
Not applicable without UV testing
Inclusions
Numerous internal fractures, feathering, and dark mineral inclusions visible throughout
Blemishes
Surface scratches, pits, and natural irregularities
Origin
Natural mineral rough
Treatment Detection
No obvious enhancements; appears in natural rough state
Estimated Value
Nominal value as a raw mineral specimen
Certification Estimate
Not eligible for standard diamond grading laboratories (GIA, AGS, etc.)
Investment Potential
Low; decorative or collector specimen only
Similar Diamonds
None (this is not a diamond)
Setting Suggestions
Wire-wrapped setting or custom bezel for raw mineral jewelry
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and hard impacts due to natural cleavage planes
Interesting Facts
Many rough minerals are frequently mistaken for gemstones or diamonds by untrained observers due to irregular lighting and surface textures.