Natural Rough Crystal (Potential Macle or Cleavage Fragment)
Natural Rough Crystal (Potential Macle or Cleavage Fragment) · Uncut / Rough (Irregular crystalline form)
N/A (Rough stone) Cut
Carat
Estimated 3.0 to 5.0 carats based on finger scale
Color
F-H (Near Colorless) based on raw transparency
Clarity
SI1 to I1 (Visible internal inclusions and surface-reaching features)
Shape
Uncut / Rough (Irregular crystalline form)
Overall Assessment
A high-quality natural rough diamond fragment showing good transparency and typical cubic/octahedral growth signatures, suitable for custom jewelry or professional faceting.
Cut Quality
N/A (Rough stone)
Brilliance
Low (Requires faceting to achieve total internal reflection)
Fire
Low (Minimal dispersion in rough state)
Scintillation
Low (Minimal twinkle in rough state)
Proportions
Irregular tabular growth with visible striations
Symmetry
Poor (Natural asymmetric growth)
Polish
N/A (Natural skin/surface)
Fluorescence
Cannot be determined without UV light source
Inclusions
Visible crystals/pinpoints and internal graining
Blemishes
Surface percussion marks and trigons/growth lines
Origin
Likely alluvial source or kimberlite pipe (Africa or Russia)
Treatment Detection
None apparent; looks like natural rough
Estimated Value
$1,500 - $3,500 (Highly dependent on yield and final color/clarity)
Certification Estimate
GIA Rough Diamond Evaluation Service
Investment Potential
Moderate; value is unlocked primarily through professional cutting and polishing
Similar Diamonds
Uncut industrial-to-near-gem quality rough parcels
Setting Suggestions
Best suited for a bespoke 'Rough Diamond' claw setting or to be faceted into a Cushion or Pear
Care & Maintenance
Ultrasonic cleaning is risky if internal feathers exist; use mild soap and water
Interesting Facts
The visible parallel lines on the surface are called growth striations, unique to the diamond's atomic structure