Natural rough crystal
Natural rough crystal · Rough uncut elongated crystal, possibly octahedral or distorted prismatic form
Not Applicable (Uncut rough specimen) Cut
Carat
Estimated around 3.5 to 5.0 carats based on visual proportions and finger scale
Color
Estimated G-I range (near colorless), with slight yellowish or brownish undertones common in raw stones
Clarity
Estimated SI1 to SI2 due to visible internal fracturing, cloudiness, and crystal inclusions
Shape
Rough uncut elongated crystal, possibly octahedral or distorted prismatic form
Overall Assessment
An interesting, natural rough diamond crystal displaying characteristic elongation, striations, and internal inclusions, offering potential for a custom cut or preservation as a mineral specimen.
Cut Quality
Not Applicable (Uncut rough specimen)
Brilliance
Limited in its current rough state; light transmission is diffused due to surface texture and inclusions
Fire
Minimal dispersion observed in the raw, unpolished state
Scintillation
Low sparkle; light reflection is restricted to natural crystal faces and internal fracture planes
Proportions
Elongated rough form; table and depth percentages do not apply prior to cutting
Symmetry
Natural crystal symmetry, showing uneven growth patterns and distorted faces
Polish
Natural crystal faces (some show striktionen/trigons, others rough fracture surfaces)
Fluorescence
Indeterminate from visual inspection alone (typically tested under UV, likely None to Faint)
Inclusions
Heavy internal clouding, feathers, and potential carbon spots visible within the crystal core
Blemishes
Natural surface textures, growth lines, and rough cleavage or fracture planes
Origin
Likely from alluvial deposits or primary kimberlite pipes (African, Canadian, or Russian origin)
Treatment Detection
No signs of artificial treatment; appears completely untreated and natural
Estimated Value
Varies significantly as a specimen piece, roughly $500 - $1,500 depending on cutting potential and purity
Certification Estimate
GIA or similar major lab would grade this as a rough specimen report or after cutting
Investment Potential
Moderate value primarily as a unique collector specimen rather than a polished investment diamond
Similar Diamonds
Other natural unpolished rough diamond crystals sold for mineral collectors or custom cut preparation
Setting Suggestions
Best preserved as a raw mineral specimen in a custom wire-wrap pendant or organic prong setting
Care & Maintenance
Handle with care to prevent chipping along natural cleavage planes; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds retain the ancient geological journey from the Earth's mantle, often featuring natural growth triangles called trigons on their faces