Natural diamond rough crystal (or mineral specimen)
Natural diamond rough crystal (or mineral specimen) · Rough crystal / Uncut octahedral or irregular crystalline form
Not applicable (Rough, uncut stone) Cut

Carat
Estimated 2.5 - 4.0 carats based on visual scale against fingers
Color
Near colorless to light brown (approx. G-J range)
Clarity
Included (I1-I2 estimated due to visible internal inclusions and surface features)
Shape
Rough crystal / Uncut octahedral or irregular crystalline form
Overall Assessment
An intriguing natural diamond rough specimen displaying classic crystal growth lines and surface features. While its current clarity and rough state limit its immediate jewelry application, it holds significant appeal as a raw mineral specimen or a candidate for custom cutting by an expert lapidary.
Cut Quality
Not applicable (Rough, uncut stone)
Brilliance
Low to moderate due to rough, unpolished surface hindering light return
Fire
Low due to lack of faceted optical geometry
Scintillation
Minimal, localized to specific reflective crystal planes
Proportions
Natural crystal habit, non-standardized proportions
Symmetry
Natural asymmetrical crystal growth
Polish
Natural rough crystal faces (trigons and striations visible)
Fluorescence
Cannot be determined without UV testing (Likely none to faint blue)
Inclusions
Internal feathers, clouds, and pinpoint inclusions typical of rough diamond formation
Blemishes
Natural surface pitting, trigons, and growth lines on crystal faces
Origin
Alluvial or primary kimberlite pipe deposit (Africa, Canada, or Russia)
Treatment Detection
No signs of artificial treatment; completely untreated natural rough
Estimated Value
$500 - $1,500 depending on cutting yield and final polished outcome
Certification Estimate
GIA (Gemological Institute of America) rough diamond evaluation report
Investment Potential
Moderate, primarily valued as a collector's mineral specimen or for custom cutting potential
Similar Diamonds
Unmenthable industrial or lower-gem grade octahedral and irregular rough diamond crystals
Setting Suggestions
Organic raw-stone pendant necklace or bespoke rustic ring setting utilizing prongs or bezel
Care & Maintenance
Store separately to avoid scratching other gems; clean with mild soapy water and a soft brush
Interesting Facts
The striations visible on the surface are growth lines formed deep within the Earth's mantle under extreme pressure and temperature