Natural Diamond (Industrial Grade / Bort)
Natural Diamond (Industrial Grade / Bort) · Rough crystal / Irregular, non-faceted crystalline structure
Uncut / Rough raw crystal Cut
Carat
Estimated 3.50 to 5.00 carats based on visual volume
Color
Low color / Heavily tinted brownish-yellow (J-Z range or beyond)
Clarity
Included (I3 / Pique) with dense internal inclusions and fractures
Shape
Rough crystal / Irregular, non-faceted crystalline structure
Overall Assessment
An intriguing raw natural diamond specimen showing classic crystal growth features, etching, and internal characteristics, best suited for mineral collections or rustic jewelry designs.
Cut Quality
Uncut / Rough raw crystal
Brilliance
Poor due to opacity, heavy inclusions, and lack of standard faceting
Fire
Minimal due to internal cloudiness and irregular crystal faces
Scintillation
Negligible due to opaque nature and lack of polished symmetry
Proportions
Natural octahedral or distorted crystal habit proportions
Symmetry
Natural asymmetric crystal growth formations
Polish
Raw unpolished crystal faces and natural corrosion features
Fluorescence
Indeterminate from visual assessment alone
Inclusions
Heavy carbon spots, feather fractures, clouds, and internal mineral inclusions
Blemishes
Natural surface trigons, etching channels, and surface pitting
Origin
Likely alluvial deposit or primary kimberlite pipe origin
Treatment Detection
No treatments detected; completely untreated natural rough stone
Estimated Value
Valued at industrial/abrasive rates rather than gem jewelry pricing (approximately $50 to $200 per carat)
Certification Estimate
Typically evaluated for industrial applications rather than gem grading labs like GIA or IGI
Investment Potential
Low investment value for jewelry; primarily useful for industrial applications, mineral collections, or specimen display
Similar Diamonds
Industrial grade bort, low-quality industrial diamond crystals, specimen-grade rough diamonds
Setting Suggestions
Wire-wrapped rough stone pendant, organic raw gemstone setting in yellow gold or sterling silver
Care & Maintenance
Avoid harsh impacts which could exploit natural internal cleavage planes and fractures; clean gently with warm soapy water
Interesting Facts
Most mined diamonds (around 80%) are industrial grade like this, used for cutting, grinding, and drilling rather than jewelry