Natural (Rough/Industrial Grade)
Natural (Rough/Industrial Grade) · Rough (Natural Trigons present)
Uncut / Rough Cut
Carat
Estimated 2.50 to 4.50 carats (based on scale against fingers)
Color
Industrial Opaque (Variations of grey, green, and brown)
Clarity
I3 / Opaque (Heavily included/Non-gem quality)
Shape
Rough (Natural Trigons present)
Overall Assessment
This is a natural rough diamond specimen of industrial or near-gem grade. While it lacks the transparency and color for high jewelry, its prominent trigons make it an excellent educational or collector's piece.
Cut Quality
Uncut / Rough
Brilliance
Very Low (Surface reflection only)
Fire
None
Scintillation
None
Proportions
Not Applicable (Rough octahedral/dodecahedral influence)
Symmetry
Not Applicable (Rough form)
Polish
None (Natural skin/surface)
Fluorescence
Indeterminate from image
Inclusions
Massive internal crystallization, possible carbon spots, and structural knots
Blemishes
Natural etching, trigons, and surface pitting
Origin
Likely African (e.g., DRC or Botswana) based on surface texture and color
Treatment Detection
None visible; appears to be raw earth-mined
Estimated Value
$50 - $250 (Specimen/Industrial value)
Certification Estimate
GIA (Rough Diamond Report/Origin) or GSI for industrial sorting
Investment Potential
Low (Collectable specimen value only; not a liquid gem investment)
Similar Diamonds
Industrial boart or Bort diamonds; rough specimens found in placer deposits
Setting Suggestions
Bezel or prong-set in a 'Rough Diamond' organic-style ring; often used in 'raw' jewelry trends
Care & Maintenance
Ultrasonic cleaners should be used with caution due to deep inclusions; mild soap and soft brush are safest
Interesting Facts
The prominent triangular marking in the center is a 'trigon,' a natural growth feature unique to diamonds that confirms its cubic crystal system.