Natural rough diamond crystal (likely industrial grade or low-quality gem grade)
Natural rough diamond crystal (likely industrial grade or low-quality gem grade) · Rough/Uncut octahedral/dodecahedral crystal with irregular weathered surface
Not applicable (Rough, unpolished stone) Cut
Carat
Estimated between 1.5 to 2.5 carats based on visual scale
Color
Low color grade, yellowish-brown tinge (approximate Cape series L-Z or off-color)
Clarity
I3 (Included 3) with heavy inclusions, fractures, and cloudiness
Shape
Rough/Uncut octahedral/dodecahedral crystal with irregular weathered surface
Overall Assessment
An authentic natural rough diamond crystal of industrial or low specimen quality, displaying classic natural surface textures and heavy internal inclusions.
Cut Quality
Not applicable (Rough, unpolished stone)
Brilliance
Very low to none (due to rough surface and opacity)
Fire
Minimal to none visible
Scintillation
Poor, lacking faceted surfaces to return light
Proportions
Not applicable to rough crystals (natural growth form)
Symmetry
Natural crystal symmetry, distorted octahedral form
Polish
Natural crystal faces (trigons and frosted skin), unpolished
Fluorescence
Indeterminate without UV testing (likely Medium to Strong Blue in natural rough stones)
Inclusions
Heavy internal clouding, feather fractures, dark carbon spots, and mineral crystals
Blemishes
Natural surface pitting, trigons, frosted skin, and wear marks from alluvial transport
Origin
Likely alluvial/secondary deposit origin (river or marine-derived rough)
Treatment Detection
No signs of human treatment; completely natural untreated rough
Estimated Value
Nominal value as a mineral specimen ($20 - $100 depending on collector interest)
Certification Estimate
Not economically viable for major labs like GIA; typically graded locally as industrial or specimen grade
Investment Potential
None as an investment gemstone; strictly holds novelty or specimen value
Similar Diamonds
Other low-grade industrial rough stones, Bort, or natural mineral specimens
Setting Suggestions
Wire-wrapped pendant, raw mineral bezel setting, or kept as a raw mineral specimen
Care & Maintenance
Store separately to prevent scratching other materials; clean with mild soapy water and soft brush
Interesting Facts
Most natural diamonds mined are actually industrial-grade rough like this, used for abrasives and cutting tools rather than jewelry