Natural rough diamond crystal showing curved and etched growth features
Natural rough diamond crystal showing curved and etched growth features · Rough crystal / Uncut natural octahedral or distorted crystal form
Not applicable (Rough uncut crystal stone) Cut
Carat
Estimated 1.5 to 2.5 carats based on visual proportions in-hand
Color
Near-colorless to slightly tinted brown (approx. G-J range)
Clarity
Included (approx. I1-I2 due to numerous internal inclusions, feathers, and surface features)
Shape
Rough crystal / Uncut natural octahedral or distorted crystal form
Overall Assessment
An intriguing natural rough diamond crystal displaying classic resorption features, ideal for mineral collectors or custom organic jewelry rather than traditional cutting
Cut Quality
Not applicable (Rough uncut crystal stone)
Brilliance
Low to moderate due to rough unpolished exterior and internal inclusions
Fire
Minimal dispersion observed through natural curved translucent surfaces
Scintillation
Limited flash effect primarily reflecting from natural curved crystal faces
Proportions
Natural asymmetrical rough formation lacking traditional faceted proportions
Symmetry
Natural irregular crystal symmetry with curved growth faces and resorption features
Polish
Natural unpolished crystal faces with typical natural micro-striations and trigons
Fluorescence
Cannot be definitively determined without UV testing, likely none to faint blue
Inclusions
Internal carbon spots, cloudiness, feathers, and micro-fractures visible throughout
Blemishes
Natural surface etch channels, pits, and rough skin characteristic of alluvial or primary deposits
Origin
Likely alluvial African or South American deposit origin indicated by surface resorption
Treatment Detection
No evidence of artificial treatments; appears entirely natural and untreated
Estimated Value
Moderate collector or specimen value, typically valued lower than faceted gems of equal weight due to industrial or specimen classification
Certification Estimate
GIA or similar major gemological laboratory report for origin and natural untreated confirmation
Investment Potential
Valued primarily as a unique geological mineral specimen rather than a liquid investment diamond
Similar Diamonds
Other natural uncut diamond crystals, industrial-grade rough diamonds, and mineral specimen crystals
Setting Suggestions
Raw mineral pendant setting, protective bezel, or custom organic-style mount to preserve the natural crystal form
Care & Maintenance
Store separately to prevent scratching other stones; clean gently with warm soapy water and a soft brush; avoid harsh ultrasonic cleaners due to internal fractures
Interesting Facts
The curved faces and pitted surface are the result of natural chemical dissolution (resorption) as the crystal was transported upward through the Earth's mantle in magma