Natural Rough Diamond Specimen
Natural Rough Diamond Specimen · Uncut Rough Cobble / Irregular Pebble
Not Applicable (Rough, Uncut) Cut
Carat
Estimated 3.50 to 5.00 carats
Color
Fancy Light Brown to Yellowish-Brown (K-M equivalent)
Clarity
Included (I1-I2)
Shape
Uncut Rough Cobble / Irregular Pebble
Overall Assessment
An interesting, unworked natural diamond crystal specimen featuring visible surface imperfections and dark inclusions, valued more for its geological curiosity than jewelry potential.
Cut Quality
Not Applicable (Rough, Uncut)
Brilliance
Low due to rough surface and opacity
Fire
Minimal due to rough, unpolished state
Scintillation
Absent due to lack of standard facet geometry
Proportions
Irregular natural crystal proportions, deep and untransformed
Symmetry
Natural Asymmetric
Polish
Raw / Untreated Surface
Fluorescence
Unknown (requires UV testing)
Inclusions
Visible dark mineral spots, internal fractures, and cloudiness
Blemishes
Natural surface pitting, rough texture, abrasion marks from alluvial transport
Origin
Likely alluvial deposit origin (riverbed or secondary source), Africa or South America
Treatment Detection
No signs of enhancement; entirely natural raw state
Estimated Value
Low commercial value as an industrial or specimen piece, approximately $50 - $150
Certification Estimate
Gemological lab certificate needed for origin verification (e.g., GIA rough diamond report)
Investment Potential
Minimal investment value, sold primarily as mineral specimens or collector curiosities
Similar Diamonds
Other alluvial rough diamond specimens of industrial or low gem quality
Setting Suggestions
Organic wire-wrap setting or raw crystal bezel setting to preserve natural appearance
Care & Maintenance
Store separately to prevent scratching other materials; clean with mild soapy water and a soft brush
Interesting Facts
Rough diamonds in this state look very similar to ordinary quartz pebbles, often hiding in plain sight in alluvial deposits