Natural rough diamond crystal
Natural rough diamond crystal · Uncut octahedral or elongated crystal fragment (rough)
Not applicable (Rough, unpolished crystal) Cut
Carat
Estimated 8-12 carats based on rough visual volume
Color
Estimated G-I near-colorless range with some brownish surface staining
Clarity
Estimated SI2 to I1 due to prominent internal inclusions and fractures
Shape
Uncut octahedral or elongated crystal fragment (rough)
Overall Assessment
An intriguing, sizable natural rough diamond crystal featuring prominent surface features and internal inclusions, offering potential for custom lapidary work.
Cut Quality
Not applicable (Rough, unpolished crystal)
Brilliance
Low due to rough, unfaceted surface and internal inclusions
Fire
Minimal to none in current rough state
Scintillation
Absent due to lack of facets
Proportions
Elongated rough crystal habit with natural tapering
Symmetry
Natural crystal symmetry showing octahedral growth lines and striations
Polish
Natural crystal faces (trigons and striations), unpolished
Fluorescence
Indeterminate from visual assessment alone (likely None to Faint)
Inclusions
Prominent dark mineral inclusions, feathers, and internal cloudiness visible
Blemishes
Natural surface etching, cavities, and adhering matrix minerals
Origin
Likely alluvial or primary kimberlitic deposit origin (African or Canadian source)
Treatment Detection
None detected; completely untreated natural rough
Estimated Value
Variable depending on cutting yield, roughly $1,500 - $3,500 USD for rough state
Certification Estimate
GIA or IGI would classify this as a rough gem-grade diamond crystal
Investment Potential
Moderate, highly dependent on the final polished yield if cut by an expert
Similar Diamonds
Comparable to industrial-to-gem grade natural octahedral rough crystals
Setting Suggestions
Can be custom-set raw in a protective bezel setting using yellow or white gold
Care & Maintenance
Store separately to avoid scratching other gems; clean gently with warm soapy water
Interesting Facts
Rough diamond crystals preserve the natural geological history and growth patterns formed deep within the Earth's mantle.