Natural diamond crystal (rough / uncut)
Natural diamond crystal (rough / uncut) · Uncut / Raw crystal with irregular octahedral or fragment form
Not applicable (rough, uncut stone) Cut
Carat
Estimated 3.5 to 5.0 carats (rough form)
Color
Near-colorless to faint tint (approx. H-J range)
Clarity
Included (approx. I1-I2 due to visible internal feathers and surface fractures)
Shape
Uncut / Raw crystal with irregular octahedral or fragment form
Overall Assessment
This is an interesting, raw natural diamond crystal in the rough. While it lacks the sparkle and precision of a cut gemstone, it showcases the raw geological beauty of carbon crystallized deep within the Earth.
Cut Quality
Not applicable (rough, uncut stone)
Brilliance
Limited due to rough surface texture and lack of faceting
Fire
Minimal in current rough state
Scintillation
Absent prior to cutting and polishing
Proportions
Uncut rough stone; table, depth, and angles do not apply
Symmetry
Natural crystal symmetry (distorted octahedral fragment)
Polish
Natural crystal faces and fracture surfaces, no artificial polish
Fluorescence
Cannot be definitively determined without UV testing (likely None to Faint)
Inclusions
Visible internal feather fractures, cloudiness, and dark mineral inclusions near the surface
Blemishes
Natural surface trigons, etch channels, and minor surface abrasions
Origin
Natural geological origin (African or Canadian alluvial/primary deposit)
Treatment Detection
No signs of enhancement or treatment; completely untreated natural rough
Estimated Value
Modest value as a rough specimen ($200 - $600 USD depending on cut yield potential)
Certification Estimate
GIA or IGI would classify this as an uncertified rough diamond crystal
Investment Potential
Low investment potential for resale, primarily valued as a mineral specimen or educational piece
Similar Diamonds
Other natural industrial or low-gem grade rough diamond octahedrons and fragments
Setting Suggestions
Wire-wrapped or organic bezel setting to preserve the raw, uncut aesthetic
Care & Maintenance
Store separately from other hard stones to prevent scratching; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds exhibit natural growth features like triangular etch marks called trigons on their crystal faces