Natural rough diamond crystal
Natural rough diamond crystal · Rough crystal, sub-cubic to irregular octahedral habit
Not applicable (rough, uncut crystal state) Cut
Carat
Estimated 2.5 to 3.5 carats
Color
Near-colorless to faint brown tint (estimated G-I range)
Clarity
Included (I1-I2 range due to prominent internal inclusions and fractures)
Shape
Rough crystal, sub-cubic to irregular octahedral habit
Overall Assessment
An interesting and substantial natural rough diamond crystal with significant inclusions and fractures, holding more value as an uncut mineral specimen or custom cut challenge than as a high-end gemstone
Cut Quality
Not applicable (rough, uncut crystal state)
Brilliance
Low in its current rough state, light transmission is diffused by surface texture and inclusions
Fire
Minimal dispersion visible through the rough curved faces
Scintillation
Poor due to lack of faceted optical surfaces
Proportions
Not applicable to rough crystals; irregular dimensions
Symmetry
Asymmetrical natural crystal form with irregular growth patterns
Polish
Natural unpolished crystal faces, showing typical rough texture and striations
Fluorescence
Cannot be definitively assessed visually (likely none to faint blue under UV)
Inclusions
Heavy internal feather fractures, cloud formations, and included mineral crystals visible
Blemishes
Natural surface etch channels, trigons, and surface pitting typical of rough stones
Origin
Likely alluvial or primary kimberlitic deposit origin, undetermined specific country
Treatment Detection
No evidence of artificial treatments; completely natural untreated rough
Estimated Value
Varies widely based on cutting potential, roughly $500 to $1,500 as an uncut specimen
Certification Estimate
GIA would likely issue a Diamond Dossier or Identification Report noting rough state
Investment Potential
Low as a finished gem, moderate for collectors of raw minerals or custom cutters
Similar Diamonds
Uncut industrial or low-gem grade rough diamond crystals of similar size
Setting Suggestions
Best preserved as a raw mineral specimen in a custom organic bezel or prong mounting
Care & Maintenance
Avoid harsh impacts, ultrasonic cleaners, and sudden temperature shifts due to internal stress fractures
Interesting Facts
Shows natural growth features and striations that record the journey of the crystal from Earth's mantle