Natural rough diamond crystal
Natural rough diamond crystal · Uncut octahedral/elongated rough crystal
Not applicable (Rough, uncut crystal) Cut
Carat
Estimated 3.5 to 5.0 carats
Color
Near-colorless to light yellow tint (K-M range)
Clarity
Included (I1-I2 equivalent due to internal crystal fractures and inclusions)
Shape
Uncut octahedral/elongated rough crystal
Overall Assessment
An interesting, elongated natural rough diamond crystal showing distinct growth lines and internal stress fractures, offering potential for lapidary work or as an uncut specimen.
Cut Quality
Not applicable (Rough, uncut crystal)
Brilliance
Low in rough form; will exhibit brilliance once properly cut and faceted
Fire
Subdued in rough form; high potential for fire after cutting
Scintillation
Limited flash effect on natural curved crystal faces
Proportions
Natural rough proportions, deep and irregular
Symmetry
Natural crystal growth symmetry (distorted octahedron)
Polish
Natural crystal faces with typical trigons and striations
Fluorescence
Likely Medium to Strong Blue under UV light
Inclusions
Feathers, clouds, and pinpoint inclusions visible inside the crystal matrix
Blemishes
Natural surface pitting, rough skin, and growth lines
Origin
Alluvial or primary kimberlite pipe deposit (African or Russian origin likely)
Treatment Detection
No treatments detected; completely untreated natural rough
Estimated Value
Depends heavily on yield after cutting, roughly $1,500 to $3,500 in rough state
Certification Estimate
GIA or IGI would classify this as natural rough diamond with internal characteristics
Investment Potential
Moderate, primarily valued for its potential faceted yield or as a collector's mineral specimen
Similar Diamonds
Typical industrial-to-gem grade natural rough diamond crystals
Setting Suggestions
Can be set raw in a bespoke organic jewelry piece, or more traditionally cut into a radiant or emerald shape
Care & Maintenance
Store separately to avoid scratching other gems; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds display natural crystal growth features like triangular etch marks called trigons on their faces