Natural rough diamond crystal
Natural rough diamond crystal · Rough octahedral/elongated crystal form, unpolished
Not applicable (rough, uncut crystal specimen) Cut
Carat
Estimated 2.5 to 3.5 carats based on visible dimensions
Color
Near-colorless to slightly tinted grey/brownish rough crystal
Clarity
Included (I1/I2 equivalent due to heavy internal feathering and cloudiness)
Shape
Rough octahedral/elongated crystal form, unpolished
Overall Assessment
An interesting and authentic natural rough diamond crystal featuring prominent growth structures and inclusions, best suited for mineral collections or raw-stone jewelry rather than cutting into a faceted gemstone.
Cut Quality
Not applicable (rough, uncut crystal specimen)
Brilliance
Low in current rough state, limited to surface reflection on natural crystal faces
Fire
Minimal dispersion visible through the cloudy rough body
Scintillation
Poor due to lack of facets and high internal inclusion count
Proportions
Natural rough proportions, deep unoptimized crystal habit
Symmetry
Natural crystal symmetry showing distorted octahedral growth lines
Polish
Natural crystal faces (trigons and striations visible, unpolished)
Fluorescence
Cannot be determined without UV light testing (typically inert to moderate blue in natural roughs)
Inclusions
Dense internal feathers, clouds, and dark internal crystal inclusions
Blemishes
Natural surface etching, trigons, and surface striations typical of rough diamond
Origin
Natural primary deposit (kimberlite or alluvial African/Russian origin)
Treatment Detection
None detected; appears entirely untreated natural rough crystal
Estimated Value
USD 500 - USD 1,500 depending on industrial versus mineral specimen collector demand
Certification Estimate
GIA or similar major lab report for rough diamond verification, though typically sold as specimen/industrial grade
Investment Potential
Low investment potential for jewelry use; primarily valued as a mineral specimen or educational display piece
Similar Diamonds
Other natural uncut industrial-grade or mineral specimen rough diamonds
Setting Suggestions
Raw mineral jewelry setting utilizing protective bezels, wire-wrapping, or prong settings designed for uncut crystal specimens
Care & Maintenance
Store separately from other hard stones to avoid scratching; clean gently with warm soapy water and a soft brush
Interesting Facts
Displays natural growth lines and surface striations (trigons) formed deep within the Earth's mantle over billions of years