Natural rough diamond crystal
Natural rough diamond crystal · Uncut octahedral/dodecahedral crystal fragment (rough)
Not applicable (uncut rough crystal) Cut
Carat
Estimated 0.85 - 1.25 carats based on visual scale against fingers
Color
Light brown/champagne tint, approximately K-M on the D-Z scale
Clarity
Included (I1-I2) due to visible dark mineral inclusions and internal fractures
Shape
Uncut octahedral/dodecahedral crystal fragment (rough)
Overall Assessment
An interesting, natural rough diamond crystal with visible character, dark inclusions, and an organic shape, best suited for a collector of raw minerals or a custom organic jewelry design.
Cut Quality
Not applicable (uncut rough crystal)
Brilliance
Low brilliance due to uncut, rough surface and inclusion-heavy interior
Fire
Minimal fire visible through the cloudy rough windows
Scintillation
Poor scintillation due to lack of standard facet patterns
Proportions
Natural crystal habit with irregular depths and angles
Symmetry
Natural crystal symmetry showing distorted octahedral growth steps
Polish
Natural crystal faces (trigons and rough skin), unpolished
Fluorescence
Cannot be determined without UV light testing (typically Medium to Strong Blue in natural rough if present)
Inclusions
Multiple dark carbon spots (graphite/mineral inclusions) and internal feather fractures
Blemishes
Natural surface pitting, rough skin, and minor surface fractures
Origin
Alluvial or primary kimberlite pipe origin (Africa or Canada)
Treatment Detection
No treatments detected; completely untreated natural rough
Estimated Value
$100 - $300 as a raw mineral specimen or custom cut candidate
Certification Estimate
GIA or EGL would grade this as a natural rough diamond specimen
Investment Potential
Low investment value as a gem; primarily valued as a mineral specimen or educational piece
Similar Diamonds
Other industrial or low-gem-quality natural rough diamond crystals
Setting Suggestions
Raw mineral bezel setting in yellow gold or sterling silver to highlight its organic, uncut beauty
Care & Maintenance
Store separately to avoid scratching other stones; clean gently with warm soapy water and a soft brush
Interesting Facts
This specimen shows the natural crystal form in which diamonds grow deep within the Earth's mantle before being brought to the surface