Natural rough diamond crystal
Natural rough diamond crystal · Rough octahedron/irregular crystal form
Not applicable (uncut rough stone) Cut
Carat
Estimated 2.5 to 3.5 carats
Color
Estimated near-colorless to faint yellow (H-J range)
Clarity
Estimated included (I1-I2) due to surface features and internal irregularities
Shape
Rough octahedron/irregular crystal form
Overall Assessment
A fascinating specimen of natural rough diamond crystal, displaying characteristic natural growth features, suitable either as a collector's mineral specimen or for specialized organic jewelry design.
Cut Quality
Not applicable (uncut rough stone)
Brilliance
Low brilliance due to rough, unpolished surfaces and natural skin
Fire
Limited dispersion visible externally due to lack of standard facets
Scintillation
Minimal sparkle; reflects light diffusely across natural crystal faces
Proportions
Natural crystal habit, non-standard geometric proportions
Symmetry
Natural crystal symmetry, distorted octahedron
Polish
Natural rough crystal faces (some trigons or striations potentially present)
Fluorescence
Indeterminate from visual assessment (typically requires UV light testing)
Inclusions
Natural mineral inclusions, cloud formations, and internal fracturing visible
Blemishes
Natural surface etching, trigons, and rough skin
Origin
Alluvial or primary kimberlite pipe deposit (African or Canadian origin likely)
Treatment Detection
No signs of artificial treatment; completely untreated natural rough
Estimated Value
Variable based on cutting potential, roughly $1,000 to $2,500 USD
Certification Estimate
GIA Rough Diamond Evaluation or Kimberley Process Certificate
Investment Potential
Moderate; highly dependent on the final yield and cut quality if polished
Similar Diamonds
Other unpolished octahedral rough diamonds of comparable size and clarity
Setting Suggestions
Can be custom set in raw/organic jewelry settings using bezel or prong mountings in yellow or white gold
Care & Maintenance
Store separately to avoid scratching other gems; clean with mild soapy water and a soft brush
Interesting Facts
Rough diamonds retain their geological history and unique natural growth marks formed deep within the Earth's mantle