Natural Carbonado / Industrial Diamond Rough
Natural Carbonado / Industrial Diamond Rough · Uncut Rough / Irregular Fragment
Not Applicable (Rough crystal/fragment) Cut
Carat
Estimated 3.50 to 5.00 carats based on visible scale
Color
Fancy Dark Gray to Opaque Black
Clarity
Included (Heavy internal inclusion structure characteristic of polycrystalline carbonado)
Shape
Uncut Rough / Irregular Fragment
Overall Assessment
An intriguing and structurally complex rough industrial-grade diamond specimen, likely carbonado, featuring characteristic dark coloration and conchoidal fracture patterns unsuitable for traditional jewelry faceting but highly collectible for mineral enthusiasts.
Cut Quality
Not Applicable (Rough crystal/fragment)
Brilliance
Very Low due to opacity and dark body color
Fire
None due to opaque nature
Scintillation
Minimal, limited to surface vitreous or sub-metallic luster reflections
Proportions
Not Applicable for rough stones
Symmetry
Asymmetrical / Natural rough formation
Polish
Unpolished natural fracture and cleavage surfaces
Fluorescence
None
Inclusions
Heavy internal clouding, microscopic porosity, and opaque carbon inclusions
Blemishes
Natural rough surface pitting, irregular cleavage lines, and conchoidal fractures
Origin
Alluvial or primary deposits in Central African Republic or Brazil (typical for carbonado)
Treatment Detection
No evidence of artificial enhancement; completely natural state
Estimated Value
$50 to $200 USD as a mineral specimen / industrial material
Certification Estimate
GIA or similar major gemological laboratory (Issued as Rough Diamond Identification Report)
Investment Potential
Low investment potential; valued primarily as a geological specimen rather than a gemstone asset
Similar Diamonds
Other natural carbonado rough, boart, or industrial-grade diamond specimens
Setting Suggestions
Wire-wrapped pendant setting or custom organic bezel setting to showcase raw mineral aesthetic
Care & Maintenance
Store separately to prevent scratching other softer stones; clean gently with warm soapy water and a soft brush
Interesting Facts
Carbonado diamonds are porous, extremely tough, and are theorized by some scientists to have an extraterrestrial origin