Natural diamond in rough crystal form with octahedral habit
Natural diamond in rough crystal form with octahedral habit · Rough Octahedral Crystal
Not applicable (Rough crystal, uncut) Cut
Carat
Estimated 3.50 to 5.00 carats based on visual dimensions
Color
Near-colorless to light brown tint (J-K range)
Clarity
Included (I1 - I2)
Shape
Rough Octahedral Crystal
Overall Assessment
An interesting and authentic natural rough diamond crystal displaying classic octahedral growth lines and surface features, ideal for display, collection, or specialized custom jewelry design.
Cut Quality
Not applicable (Rough crystal, uncut)
Brilliance
Low brilliance due to uncut, rough state and surface impurities
Fire
Minimal dispersion visible on rough, unpolished surfaces
Scintillation
Poor scintillation due to lack of facets and rough surface texture
Proportions
Natural crystal proportions, not faceted
Symmetry
Natural octahedral symmetry with distorted growth faces
Polish
Natural crystal faces showing trigons and striations
Fluorescence
Cannot be determined accurately without UV testing, likely Faint to Medium blue
Inclusions
Internal cloud-like structures, mineral inclusions, and internal feather fractures
Blemishes
Natural surface etch channels, trigons, and surface pitting
Origin
Likely alluvial or primary kimberlite deposit origin from Africa or Canada
Treatment Detection
No treatments detected; completely untreated natural rough stone
Estimated Value
Varies significantly based on cutting yield potential, roughly $1,500 - $3,000 USD as rough
Certification Estimate
GIA or similar major laboratory report for rough diamond verification
Investment Potential
Moderate, primarily valued as a collector's specimen or for potential polished yield after cutting
Similar Diamonds
Other natural rough octahedral diamond crystals of similar size and clarity
Setting Suggestions
Can be custom-set raw in its natural form using a bezel or prong mounting with 18k yellow or white gold
Care & Maintenance
Store separately to avoid scratching other gems; clean gently with warm soapy water and a soft brush
Interesting Facts
The octahedral shape is the most classic and common crystal habit for natural diamond formation under extreme mantle pressure