Natural Rough Diamond Crystal
Natural Rough Diamond Crystal · Uncut Octahedral/Irregular Crystal Rough
Not Applicable (Rough un-faceted crystal) Cut
Carat
Estimated 1.5 - 2.5 carats based on visual proportions
Color
Light Brown to Yellowish Tint (Cape Series)
Clarity
Included (I1-I2 equivalent due to internal feathering and mineral inclusions)
Shape
Uncut Octahedral/Irregular Crystal Rough
Overall Assessment
An authentic, untreated natural rough diamond crystal displaying characteristic curved growth lines and natural coloration, best suited for mineral collection or custom organic jewelry design.
Cut Quality
Not Applicable (Rough un-faceted crystal)
Brilliance
Low due to lack of facets and rough surface texture
Fire
Minimal on surface; potential for high fire once properly cut and polished
Scintillation
Poor due to lack of standard facet geometry
Proportions
Natural elongated crystal habit with curved faces
Symmetry
Natural distorted crystal growth, typical of rough diamond formation
Polish
Natural crystal faces (trigons and striations visible)
Fluorescence
Cannot be determined without UV testing (likely Medium Blue if nitrogen-rich)
Inclusions
Internal carbon spots, feathers, and stress fractures visible
Blemishes
Natural surface pitting, rough skin, and original matrix adhesion
Origin
Likely alluvial or primary kimberlitic deposit (African or South American origin)
Treatment Detection
Untreated, completely natural rough specimen
Estimated Value
Depends heavily on yield after cutting; raw specimen value roughly $300 - $800
Certification Estimate
GIA or IGI rough diamond evaluation report
Investment Potential
Moderate as a unique mineral specimen, highly dependent on cutting yield if faceted
Similar Diamonds
Industrial or low-gem grade rough diamond crystals sold to collectors and custom lapidaries
Setting Suggestions
Raw crystal pendant setting in yellow gold or platinum cage to showcase natural octahedral form
Care & Maintenance
Avoid harsh chemicals and ultrasonic cleaning due to internal natural stress fractures
Interesting Facts
Rough diamonds preserve the natural history of the Earth's mantle, often displaying growth marks called trigons on their faces