Natural rough diamond crystal showing typical octahedral growth features and trigons.
Natural rough diamond crystal showing typical octahedral growth features and trigons. · Rough crystal / Uncut octahedral habit
Not applicable for rough uncut stones; requires professional cutting and faceting to assess cut grade Cut
Carat
Estimated approximately 0.50 to 0.80 carats based on visual scale
Color
Near-colorless to light brown tint (G-J range)
Clarity
Included (I1-I2 range), showing prominent internal flaws, feathers, and cloud-like inclusions
Shape
Rough crystal / Uncut octahedral habit
Overall Assessment
An interesting, genuine natural rough diamond crystal displaying classic octahedral features and surface growth markings, ideal either as a raw mineral specimen or for custom cutting
Cut Quality
Not applicable for rough uncut stones; requires professional cutting and faceting to assess cut grade
Brilliance
Limited in current rough state; will improve dramatically upon proper cutting and polishing
Fire
Obscured by rough surface textures and natural skin
Scintillation
Low in rough form due to lack of flat optical facets
Proportions
Natural geological crystal habit, non-standard proportions prior to cutting
Symmetry
Natural octahedral crystal symmetry with characteristic curved faces and triangular growth markings (trigons)
Polish
Natural crystal face texture, untreated unpolished rough
Fluorescence
Indeterminate from visual inspection alone (requires UV testing)
Inclusions
Visible internal feathers, mineral inclusions, and structural clouds typical of untreated rough diamonds
Blemishes
Natural surface pitting, rough skin, and trigons
Origin
Likely alluvial or primary kimberlite pipe deposit origin
Treatment Detection
No signs of artificial treatments; completely natural untreated rough diamond
Estimated Value
Modest collector or industrial value as rough mineral specimen; value depends heavily on potential yield after cutting
Certification Estimate
GIA or IGI rough diamond evaluation or report prior to cutting
Investment Potential
Retains mineral specimen and raw gemstone value; higher potential if expertly cut into a polished diamond
Similar Diamonds
Typical run-of-mine natural rough diamond crystals of industrial to lower commercial grade
Setting Suggestions
Can be preserved as an uncut raw diamond pendant in an organic rustic bezel setting, or faceted into a standard round brilliant
Care & Maintenance
Store separately to avoid scratching other jewelry; clean gently with warm soapy water and a soft brush
Interesting Facts
The octahedral shape is the most common and classic crystal habit for natural diamonds, formed deep within the Earth's mantle under extreme pressure and temperature