Natural Rough Diamond
Natural Rough Diamond · Rough Octahedral/Dodecahedral Fragment
Uncut / Raw Cut
Carat
5.00 - 10.00 carats (estimated based on visible fragment size)
Color
D-F (Colorless)
Clarity
Slightly Included (SI range)
Shape
Rough Octahedral/Dodecahedral Fragment
Overall Assessment
An exceptional large rough diamond specimen showing classic cubic crystal system growth features and high potential for a significant colorless polished gem.
Cut Quality
Uncut / Raw
Brilliance
Low (Surface reflection only, no internal light return due to lack of facets)
Fire
Low to moderate (Visible only on sharp crystal edges)
Scintillation
Minimal (Localized to crystal surface geometry)
Proportions
Irregular natural crystalline formation
Symmetry
Poor (Natural crystalline state)
Polish
N/A (Natural trigons and growth steps visible)
Fluorescence
None visible
Inclusions
Mineral crystals and dark carbon spots visible internally
Blemishes
Natural growth marks, feathers, and stepped cleavage planes
Origin
Likely Russian (Siberia) or Canadian (Northwest Territories) based on growth patterns
Treatment Detection
None (Untreated natural rough)
Estimated Value
$15,000 - $45,000 depending on final yield potential
Certification Estimate
GIA (Rough Diamond Evaluation)
Investment Potential
High if yield analysis supports a high-clarity polished stone
Similar Diamonds
Uncut museum-grade specimen diamonds
Setting Suggestions
Custom 'Rough Beauty' bezel or tension setting for raw gemstones
Care & Maintenance
Avoid ultrasonic cleaners if feathers are deep; clean with mild soap and warm water only
Interesting Facts
The surface shows 'trigons', which are triangular growth pits unique to natural diamonds.