Natural diamond (rough, unpolished mineral specimen)

Natural diamond (rough, unpolished mineral specimen) · Rough crystal / Irregular octahedral fragment

Not applicable (Rough stone) Cut

Natural diamond (rough, unpolished mineral specimen) - Rough crystal / Irregular octahedral fragment

Carat

Estimated 3.5 - 5.0 carats based on visual size and density

Color

Brownish-grey / Off-color fancy range

Clarity

I3 (Heavy inclusions, heavily fractured and included)

Shape

Rough crystal / Irregular octahedral fragment

Overall Assessment

This is a raw, unpolished natural diamond or crystalline quartz mineral specimen showing heavy internal inclusions, natural surface etching, and a brownish-grey hue typical of industrial or low-gem quality rough stones.

Cut Quality

Not applicable (Rough stone)

Brilliance

Very low to none (opaque/translucent rough surface)

Fire

Absent in current rough state

Scintillation

Minimal to none due to lack of facets and transparency

Proportions

Irregular raw crystal proportions, high depth percentage

Symmetry

Natural asymmetrical crystal growth

Polish

Raw, unpolished matrix surface with natural crystal faces and etching

Fluorescence

Cannot be determined without UV testing (likely inert to faint blue)

Inclusions

Numerous internal feathers, fractures, cloud clusters, and dark mineral inclusions

Blemishes

Natural surface pitting, trigons, and etching marks

Origin

Alluvial deposit or primary kimberlite pipe (Africa, Australia, or Arkansas state park origin likely)

Treatment Detection

No treatments detected; completely natural untreated rough

Estimated Value

$50 - $150 USD as a mineral specimen / industrial grade rough

Certification Estimate

Gemological Institute of America (GIA) or local laboratory report for rough identity verification

Investment Potential

Low investment value; sold primarily as a novelty, educational, or mineral specimen piece

Similar Diamonds

Industrial grade rough diamond specimens and collector mineral samples

Setting Suggestions

Wire-wrapped raw crystal pendant or rustic bezel setting to preserve natural character

Care & Maintenance

Store separately to avoid scratching softer gems; clean with mild soapy water and a soft brush

Interesting Facts

Most mined diamonds are of industrial grade and never become jewelry; rough stones show the natural octahedral crystal habit formed deep in the Earth's mantle.

Identified on 8/24/2026
Natural diamond (rough, unpolished mineral specimen) Rough crystal / Irregular octahedral fragment | Diamond Identifier