Natural (Rough Crystal)
Natural (Rough Crystal) · Rough Uncut Octahedral/Irregular Fragment
Not Applicable (Uncut rough specimen) Cut
Carat
Estimated 1.5 to 2.5 carats based on visual scale
Color
Near-colorless to faint yellow tint (G-J range estimated)
Clarity
I1 to I3 (Included, with prominent natural flaws and heavy surface texture)
Shape
Rough Uncut Octahedral/Irregular Fragment
Overall Assessment
This is an authentic, untreated natural rough diamond crystal displaying classic geological features such as natural skin, striations, and irregular growth patterns. While it lacks the optical performance of a cut stone, it possesses unique geological charm as an uncut specimen.
Cut Quality
Not Applicable (Uncut rough specimen)
Brilliance
Low to moderate due to rough surfaces and internal imperfections
Fire
Minimal in current rough state, requires cutting and polishing to exhibit dispersion
Scintillation
Poor in rough form; light does not return uniformly
Proportions
Not Applicable for rough stones; natural crystal habit displayed
Symmetry
Natural asymmetrical crystal growth formation
Polish
None (Natural crystal faces showing trigons and striations)
Fluorescence
Unable to determine without UV light testing (typically Medium Blue in many natural rough stones)
Inclusions
Heavy internal cloudiness, feathers, and carbon spots visible
Blemishes
Natural surface etch channels, trigons, frosted edges, and rough skin
Origin
Likely alluvial or primary kimberlite pipe deposit (African or Canadian origin typical for such rough)
Treatment Detection
No signs of artificial treatment; completely untreated natural rough
Estimated Value
Depends heavily on potential yield after cutting; raw speculative value is lower, roughly $300 to $800
Certification Estimate
GIA or HRD would grade this as a natural rough diamond specimen
Investment Potential
Low as a polished gem investment, but holds collectible value as a natural crystal specimen
Similar Diamonds
Other natural industrial or commercial grade rough diamond specimens
Setting Suggestions
Best kept as a raw mineral specimen or set in an organic, raw-style bezel pendant or ring using 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 striations and triangular markings (trigons) on the surface are natural growth features formed deep within the Earth's mantle.