Natural rough diamond crystal or potentially a heavy ice/hail pellet given context, but assuming mineral specimen: Natural rough diamond octahedron with rounded edges (macle or rounded crystal)
Natural rough diamond crystal or potentially a heavy ice/hail pellet given context, but assuming mineral specimen: Natural rough diamond octahedron with rounded edges (macle or rounded crystal) · Rough crystal / Natural unaltered form with rounded faces
Not applicable (Rough unprocessed stone) Cut

Carat
Estimated approximately 1.50 to 2.00 carats based on relative finger scale
Color
Milky white / off-white natural rough body color
Clarity
Included (I1-I3) due to extensive internal cloudiness and crystal inclusions visible in raw form
Shape
Rough crystal / Natural unaltered form with rounded faces
Overall Assessment
This appears to be a natural rough diamond crystal in its unpolished, semi-translucent state, showcasing the characteristic irregular growth and rounded features typical of un-facetted diamond rough.
Cut Quality
Not applicable (Rough unprocessed stone)
Brilliance
Low to moderate due to milky transparency and unpolished surface
Fire
Minimal dispersion in raw, milky state
Scintillation
Poor light return due to rough, unfaceted surface and semi-translucent body
Proportions
Natural formation proportions, highly variable due to untouched rough state
Symmetry
Natural crystal symmetry (distorted octahedral/dodecahedral growth forms)
Polish
Natural unpolished crystal faces (terrace lines and trigons may be present)
Fluorescence
Cannot be determined accurately without UV light testing (typically moderate blue in natural rough types if present)
Inclusions
Heavy internal clouds, feather fractures, and potential carbon spots typical of rough gem material
Blemishes
Natural surface pitting, resorption windows, and growth marks
Origin
Alluvial deposit or primary kimberlite pipe origin (Africa, Canada, or Russia)
Treatment Detection
No treatments detected; completely natural untreated rough state
Estimated Value
Variable depending on exact weight and industrial vs. gem quality; rough diamond value range roughly $100 - $500 USD
Certification Estimate
GIA or local gemological laboratory report for rough diamond verification and weight registration
Investment Potential
Low to moderate as a collector's mineral specimen rather than a finished investment-grade polished stone
Similar Diamonds
Unaltered octahedral or dodecahedral rough diamond crystals of similar carat weight and cloudy clarity
Setting Suggestions
Organic raw-stone bezel setting in yellow or white gold to showcase the natural un-faceted crystal appearance
Care & Maintenance
Store separately to avoid scratching other jewelry; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds straight from the earth often feature curved faces and rounded edges caused by natural dissolution (resorption) deep within the mantle