Natural rough diamond crystal

Natural rough diamond crystal · Rough octahedral/irregular crystal form (uncut)

Not applicable (Rough crystal, unpolished) Cut

Natural rough diamond crystal - Rough octahedral/irregular crystal form (uncut)

Carat

Estimated 2.0 to 3.5 carats

Color

Light brown/yellowish tint (Cape series)

Clarity

I1 to I2 (Included, featuring internal fractures and feathers)

Shape

Rough octahedral/irregular crystal form (uncut)

Overall Assessment

An interesting, natural rough diamond crystal with noticeable inclusions and a brownish tint, ideal for a collector specimen or custom rustic cut.

Cut Quality

Not applicable (Rough crystal, unpolished)

Brilliance

Low to moderate due to rough surface and inclusions

Fire

Subdued due to rough unpolished exterior

Scintillation

Minimal in current rough state

Proportions

Natural raw proportions, requiring custom cutting plan

Symmetry

Natural crystal symmetry, distorted octahedral faces

Polish

Natural crystal face texture (trigons and striations likely present)

Fluorescence

Cannot be determined accurately without UV testing (likely Medium blue if tested)

Inclusions

Feathers, clouds, and dark mineral inclusions visible internally

Blemishes

Natural surface pitting, rough skin, and possible trigons

Origin

Alluvial or primary kimberlite pipe deposit (Africa or South America)

Treatment Detection

No treatments detected; completely natural rough specimen

Estimated Value

Varies widely based on potential yield after cutting, roughly $500 to $1,500 USD for the rough stone

Certification Estimate

GIA rough evaluation or local gemological laboratory certificate

Investment Potential

Collector value for mineral specimens; variable investment depending on final cut yield

Similar Diamonds

Other natural unpolished alluvial rough diamond specimens

Setting Suggestions

Can be set in its raw, uncut state using a custom bezel or wire-wrap setting for organic jewelry

Care & Maintenance

Clean with warm soapy water and a soft brush; avoid harsh acids or ultrasonic cleaners due to internal fractures

Interesting Facts

Rough diamonds retain their geological history, showing natural growth marks called trigons on their crystal faces

Identified on 8/24/2026
Natural rough diamond crystal Rough octahedral/irregular crystal form (uncut) | Diamond Identifier