Natural rough diamond crystal
Natural rough diamond crystal · Rough / Uncut crystal pebble form with rounded natural faces
Not applicable (rough, uncut stone) Cut
Carat
Estimated around 3.5 to 5.0 carats based on typical density and relative finger scale
Color
Low commercial grade, brownish-yellow tint (approx. K-M equivalent if cut)
Clarity
Included (I1-I2 equivalent due to heavy surface and internal features)
Shape
Rough / Uncut crystal pebble form with rounded natural faces
Overall Assessment
An interesting natural rough diamond specimen showing classic alluvial weathering and unaltered crystal characteristics, best appreciated as a mineral sample or evaluated for custom cutting.
Cut Quality
Not applicable (rough, uncut stone)
Brilliance
Very low in current rough state due to lack of facets and frosted skin
Fire
Minimal to none in current rough state
Scintillation
Non-existent prior to cutting and faceting
Proportions
Natural unmodified crystal proportions
Symmetry
Natural asymmetrical crystal growth
Polish
Raw, unpolished natural surface with frosted/etched skin
Fluorescence
Indeterminate from visual inspection without UV testing
Inclusions
Heavy internal fracturing, cloudiness, and crystal inclusions typical of raw diamond material
Blemishes
Natural surface pitting, trigons (possibly), and iron-staining on the outer skin
Origin
Likely alluvial deposit origin (riverbed or secondary source) due to rounded edges
Treatment Detection
No treatments detected; completely natural rough specimen
Estimated Value
Nominal industrial or specimen value ($50 - $200 USD depending on exact weight and cutting potential)
Certification Estimate
GIA would likely issue an identification report rather than a standard grading report for rough stone
Investment Potential
Low investment potential unless cut and polished into a marketable gem, primarily a mineral specimen
Similar Diamonds
Typical alluvial industrial-grade rough diamonds from African or South American deposits
Setting Suggestions
Can be set raw in a rustic wire-wrapped or organic bezel mounting as a collector piece
Care & Maintenance
Store separately to avoid scratching other jewelry; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds often have a greasy feel and a frosted outer layer called 'skin' which hides the optical properties within