Natural diamond rough crystal (or mineral specimen)
Natural diamond rough crystal (or mineral specimen) · Rough / Uncut octahedral or irregular fragment
Not applicable (Rough stone, unpolished) Cut
Carat
Estimated 2.0 to 3.5 carats based on visual scale in hand
Color
Near-colorless to light brown tint (approx. G-J range)
Clarity
Included (I1-I3 equivalent in rough form due to surface reaching features and internal twinning lines)
Shape
Rough / Uncut octahedral or irregular fragment
Overall Assessment
An interesting, natural rough diamond specimen showing authentic crystal characteristics, surface textures, and growth lines, best suited for custom raw-stone jewelry or as a geological collector's piece
Cut Quality
Not applicable (Rough stone, unpolished)
Brilliance
Low in rough state; limited to surface luster on natural crystal faces
Fire
Minimal dispersion observed in the unpolished rough state
Scintillation
Absent due to lack of faceted angles and polished surfaces
Proportions
Not applicable to rough material
Symmetry
Natural distorted crystal growth, asymmetrical rough form
Polish
Natural rough crystal faces (trigons and striations visible) with some fracture planes
Fluorescence
Indeterminate from visual inspection alone (typical natural rough often shows blue/yellow under UV)
Inclusions
Internal feathers, clouds, and potential mineral crystals (carbon spots) typical of natural rough
Blemishes
Natural surface etch marks, cavities, trigons, and rough cleavage/fracture planes
Origin
Natural primary deposit (alluvial or kimberlite pipe origin)
Treatment Detection
No signs of artificial treatments; appears completely untreated natural rough
Estimated Value
Nominal value as a mineral specimen or low-grade industrial/jewelry rough; highly dependent on cutting yield and final polished outcome
Certification Estimate
GIA or similar major lab would issue a Gemological Report identifying it as Natural Diamond Rough, uncertified for specific clarity/color grades prior to cutting
Investment Potential
Low investment potential for jewellery use unless masterfully cut and polished to maximize weight retention and clarity
Similar Diamonds
Other natural unpolished octahedral diamond crystals and rough industrial-grade diamond specimens
Setting Suggestions
Raw uncut diamond jewelry settings utilizing prongs or bezel to secure the organic rough shape, paired with yellow or white gold
Care & Maintenance
Store separately to avoid scratching softer gemstones; clean with mild soapy water and a soft brush, avoiding harsh chemical baths
Interesting Facts
The rough surface often displays natural growth markings called trigons (triangular depressions) which are proof of natural crystal formation deep within the Earth