Natural rough diamond crystal
Natural rough diamond crystal · Uncut octahedral or irregular crystal habit
Not applicable (rough, uncut stone) Cut
Carat
Estimated 3.5 to 5.0 carats based on visual scale
Color
Near colorless to faint yellow (approximate G-J range)
Clarity
Included (I1-I2 equivalent due to prominent internal inclusions and surface features)
Shape
Uncut octahedral or irregular crystal habit
Overall Assessment
An interesting and substantial natural rough diamond crystal displaying classic geological features, growth striations, and inclusions, offering potential for a custom cut or preservation as a mineral specimen.
Cut Quality
Not applicable (rough, uncut stone)
Brilliance
Low in current rough state; requires cutting and polishing to exhibit brilliance
Fire
Minimal dispersion visible on rough surfaces; high potential once faceted
Scintillation
Absent in current uncut form
Proportions
Natural crystal proportions, unshaped
Symmetry
Natural crystalline symmetry showing typical growth lines and striations
Polish
Natural rough surface finish, untreated crystal faces
Fluorescence
Cannot be determined accurately without UV testing, likely none to moderate
Inclusions
Internal mineral crystals, cloudiness, and dark spot inclusions visible along cleavage planes
Blemishes
Natural surface etch channels, trigons, and rough skin characteristic of alluvial or primary deposit rough
Origin
Likely alluvial or primary kimberlite rough from African or South American origin
Treatment Detection
None detected; completely natural untreated rough
Estimated Value
Varies widely depending on cutting potential, roughly $1,500 to $3,500 for uncut industrial/gem rough
Certification Estimate
GIA rough diamond evaluation or Kimberley Process certification
Investment Potential
Moderate, primarily valued as a collectible mineral specimen or speculative cutting rough
Similar Diamonds
Standard run-of-mine gem-quality rough diamond crystals
Setting Suggestions
Best kept as a collector's mineral specimen or custom-cut into a brilliant round or fancy shape
Care & Maintenance
Store in a soft cloth pouch separately from other gemstones to avoid scratching other materials
Interesting Facts
Displays natural growth lines (trigons and striations) formed deep within the Earth's mantle under intense pressure and temperature