Natural rough diamond crystal
Natural rough diamond crystal · Uncut octahedral or elongated crystal habit
Not applicable (Rough crystal, uncut and unpolished) Cut
Carat
Estimated 0.85 - 1.20 carats based on visual proportions
Color
Near-colorless to light yellow tint (approx. K-M range)
Clarity
Included (I1-I2) with visible internal feather fractures and mineral inclusions
Shape
Uncut octahedral or elongated crystal habit
Overall Assessment
An interesting, unworked natural diamond crystal displaying characteristic rough morphology and natural surface features, best suited for mineral collectors or custom organic jewelry rather than traditional faceted gemstone use
Cut Quality
Not applicable (Rough crystal, uncut and unpolished)
Brilliance
Low to moderate due to rough surface and internal fractures preventing optimal light return
Fire
Minimal due to unfaceted surface scattering light irregularly
Scintillation
Poor, as light does not reflect systematically through facets
Proportions
Natural rough form; depth and table percentages do not apply
Symmetry
Natural crystal symmetry showing distorted growth lines
Polish
Natural crystal faces (trigons and striations visible)
Fluorescence
Unable to determine accurately without UV testing; likely None to Faint
Inclusions
Internal cleavage planes, fractures, and brownish mineral spots
Blemishes
Surface etching, natural pitting, and rough skin typical of alluvial or primary deposit rough
Origin
Likely alluvial African or South American primary deposit source
Treatment Detection
None detected; appears entirely untreated and as-mined
Estimated Value
$100 - $300 USD depending on industrial versus specimen collector interest
Certification Estimate
GIA or local gemological laboratory as a rough specimen report
Investment Potential
Low investment value as a loose gemstone, primarily valued as a mineral specimen or educational piece
Similar Diamonds
Other natural unpolished industrial or specimen-grade rough diamond crystals
Setting Suggestions
Wire-wrapped raw crystal pendant or bespoke organic-style prong setting in yellow or white gold
Care & Maintenance
Avoid harsh impacts which could exploit internal cleavage planes; clean gently with warm soapy water and a soft brush
Interesting Facts
Natural diamond rough often exhibits curved growth steps and surface features called trigons, which are microscopic triangular depressions