Natural rough diamond crystal
Natural rough diamond crystal · Rough octahedron with natural growth features
Not yet cut (raw crystal form) Cut
Carat
Estimated 2.5 to 3.5 carats in rough form
Color
Estimated near-colorless to light brown tint (G-J range)
Clarity
Estimated included (I1-I2) due to noticeable internal cloudiness and crystal inclusions
Shape
Rough octahedron with natural growth features
Overall Assessment
This is a fascinating natural rough diamond specimen showcasing authentic geological features. While it contains significant internal inclusions, it holds great potential for a custom lapidary project or as a unique raw mineral display piece.
Cut Quality
Not yet cut (raw crystal form)
Brilliance
Low in rough state; will improve significantly upon cutting and polishing
Fire
Obscured by rough surface and internal inclusions
Scintillation
Limited in raw state due to lack of faceted surfaces
Proportions
Natural crystal proportions, unshaped
Symmetry
Natural crystallographic symmetry showing octahedral faces
Polish
Natural unpolished crystal skin (trigons and striations visible)
Fluorescence
Cannot be determined without UV testing, likely none to faint
Inclusions
Internal cloud-like structures, fractures, and crystal mineral inclusions
Blemishes
Natural surface etchings, trigons, and rough skin textures
Origin
Likely alluvial or primary kimberlite pipe origin (African or Canadian source)
Treatment Detection
No treatments detected; entirely untreated natural rough
Estimated Value
Depends heavily on yield after cutting, rough value approximately $1,500 - $3,000 USD
Certification Estimate
GIA or IGI would classify as a natural rough diamond specimen
Investment Potential
Moderate value as a collectible mineral specimen; high potential if expertly cut into a polished gem
Similar Diamonds
Comparable to standard industrial-to-gem grade run-of-mine African rough diamonds
Setting Suggestions
Best preserved as a raw mineral specimen in a custom organic bezel setting, or cut into a cushion or radiant shape
Care & Maintenance
Store separately to avoid scratching other gems; clean gently with warm soapy water and a soft brush
Interesting Facts
Rough diamonds display natural crystal growth marks called trigons, which are triangular etch pits formed deep within the Earth's mantle