Natural Rough Diamond
Natural Rough Diamond · Rough / Uncut / Macle-like formation
N/A (Rough gemstone) Cut
Carat
Estimated 10.0 - 20.0 carats (based on scale and crystalline structure)
Color
High-grade colorless range (Estimated D-F)
Clarity
Translucent to SI range (due to visible internal carbon and feathers)
Shape
Rough / Uncut / Macle-like formation
Overall Assessment
This is a high-quality natural rough diamond secondary to its significant size and apparent high color grade, despite notable internal inclusions and feathers.
Cut Quality
N/A (Rough gemstone)
Brilliance
Low (unpolished state)
Fire
Subtle dispersion visible at specific reflection points on outer surface
Scintillation
Low (pending facet cutting)
Proportions
Uncut crystal; exhibits trigons and growth lines on surface
Symmetry
N/A (Natural crystal habit)
Polish
N/A (Natural surface textures)
Fluorescence
Cannot determine without UV light; likely none to faint
Inclusions
Visible dark crystal inclusions (likely graphite or olivine) and internal feathering
Blemishes
Natural growth marks, percussion marks, and surface striations
Origin
Likely Russian (Siberian) or African alluvial source based on surface characteristics
Treatment Detection
None detected; appears in natural raw state
Estimated Value
$15,000 - $45,000 (highly dependent on potential yield and cut plan)
Certification Estimate
GIA Rough Diamond Report
Investment Potential
High, as rare large rough stones retain value well and provide potential for premium faceted diamonds
Similar Diamonds
Rough diamonds showcased at De Beers or Alrosa auctions
Setting Suggestions
Specimen mount or custom organic-style rough diamond setting in platinum
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid ultrasonic cleaners due to internal feathers
Interesting Facts
The surface displays trigons, which are triangular growth pits unique to natural diamonds, proving its geological origin