Natural (Rough Crystal)
Natural (Rough Crystal) · Rough Uncut Octahedral / Irregular Crystal
Not Applicable (Rough Crystal) Cut
Carat
Estimated 2.5 - 3.5 carats
Color
Near-colorless to light brown tint (K-M range)
Clarity
Included (I1-I2)
Shape
Rough Uncut Octahedral / Irregular Crystal
Overall Assessment
An interesting, heavily included natural rough diamond crystal with strong character, better suited for mineral collections or careful custom cutting rather than direct jewelry mounting.
Cut Quality
Not Applicable (Rough Crystal)
Brilliance
Low due to rough and unpolished surface
Fire
Minimal due to lack of standard facet angles
Scintillation
Poor due to irregular raw facets and opaque inclusions
Proportions
Natural uncut proportions with high variation in depth and angles
Symmetry
Natural crystal growth symmetry
Polish
None (Natural crystal faces / raw surface)
Fluorescence
Unknown (requires UV testing)
Inclusions
Heavy internal feathers, clouds, and mineral inclusions visible
Blemishes
Natural surface trigons, etching, and surface graining
Origin
Likely alluvial deposit origin (riverbed rough)
Treatment Detection
No signs of artificial treatment; completely natural state
Estimated Value
$300 - $800 depending on final cut yields and industrial vs gem quality
Certification Estimate
GIA would likely classify it as a rough natural diamond specimen
Investment Potential
Moderate as a collector specimen, depends heavily on whether it is cut and polished
Similar Diamonds
Other alluvial rough diamond specimens from African or South American mines
Setting Suggestions
Raw crystal pendant setting utilizing yellow gold or titanium to highlight the natural organic shape
Care & Maintenance
Avoid harsh chemicals and ultrasonic cleaning due to internal fractures
Interesting Facts
Rough diamonds like this show natural crystal growth features formed deep within the Earth's mantle over billions of years