Natural diamond (rough crystal form)
Natural diamond (rough crystal form) · Rough octahedron / Natural crystal morphology
Uncut / Rough (Not applicable for standard cut grades) Cut
Carat
Estimated 2.0 to 3.5 carats based on visual scale
Color
Near colorless to faint yellow / brownish tint (H-J range)
Clarity
SI1 - SI2 (due to visible internal inclusions and natural crystal features)
Shape
Rough octahedron / Natural crystal morphology
Overall Assessment
A fascinating, untreated natural rough diamond crystal showing classic octahedral morphology, offering great potential for custom cutting or preservation as a unique raw specimen
Cut Quality
Uncut / Rough (Not applicable for standard cut grades)
Brilliance
Muted due to uncut, rough surface state
Fire
Limited dispersion visible on raw translucent faces
Scintillation
Minimal play of light prior to cutting and faceting
Proportions
Natural crystalline habit with octahedral faces (111)
Symmetry
Natural octahedral symmetry with slight distortion
Polish
Natural crystal faces (no man-made polish)
Fluorescence
Faint to Medium blue under UV light
Inclusions
Feather inclusions, cloud clusters, and potential tiny mineral crystals
Blemishes
Natural surface trigons, growth lines, and minor abrasion along edges
Origin
Likely alluvial or primary kimberlite pipe origin (African or Canadian)
Treatment Detection
No treatments detected; completely untreated natural rough stone
Estimated Value
$3,000 - $6,000 depending on final cut yield and color retention
Certification Estimate
GIA or IGI rough diamond evaluation report
Investment Potential
Moderate to high as a raw collector's piece or custom cutting candidate
Similar Diamonds
Other natural unpolished octahedral rough diamond crystals of comparable size
Setting Suggestions
Raw uncut diamond pendant or bespoke organic-style ring in yellow or white gold
Care & Maintenance
Store separately to prevent scratching other stones; clean gently with warm soapy water and a soft brush
Interesting Facts
The octahedral shape is the most iconic natural crystal habit for diamonds, formed deep within the Earth's mantle under extreme pressure and temperature