Natural diamond rough crystal (uncut)
Natural diamond rough crystal (uncut) · Rough octahedral/irregular crystal fragment
Not applicable (rough, uncut stone) Cut
Carat
Estimated 2.0 to 3.5 carats
Color
Near-colorless to slightly tinted (approx. G-I range)
Clarity
Included (I1-I2 due to visible internal fractures and structural flaws)
Shape
Rough octahedral/irregular crystal fragment
Overall Assessment
An interesting and genuine natural rough diamond crystal displaying characteristic octahedral growth features and natural flaws, ideal for display or expert cutting experiments rather than direct jewelry use.
Cut Quality
Not applicable (rough, uncut stone)
Brilliance
Low in current rough state; requires proper cutting and faceting to exhibit brilliance
Fire
Minimal dispersion in rough state due to lack of flat polished facets
Scintillation
Absent in raw form; will develop upon expert faceting
Proportions
Natural rough geometry; deep un-faceted stone with irregular depth
Symmetry
Natural crystal symmetry showing octahedral growth lines and trigons
Polish
Unpolished natural crystal faces (some frosted or etched surfaces)
Fluorescence
Cannot be definitively determined without UV testing; likely None to Faint
Inclusions
Prominent internal feathers, cleavage planes, and dark mineral spots
Blemishes
Natural surface pitting, rough trigons, and superficial fracture lines
Origin
Likely alluvial or primary kimberlitic deposit origin
Treatment Detection
No signs of artificial treatments; completely natural untreated rough
Estimated Value
Modest value as a mineral specimen or industrial/low-grade gem material, roughly $100 to $400 depending on cutting yield
Certification Estimate
GIA or IGI would classify this as natural rough diamond specimen
Investment Potential
Low investment potential for resale as a gem, primarily of interest to collectors or lapidarists
Similar Diamonds
Typical industrial-grade or lower-clarity natural diamond rough crystals
Setting Suggestions
Best kept as a raw mineral specimen or custom-set in a protective organic bezel setting
Care & Maintenance
Store securely to prevent further chipping along natural cleavage planes; clean gently with warm soapy water
Interesting Facts
The octahedral shape clearly displays the natural crystal habit of diamond formed deep within the Earth's mantle