Natural Diamond (or potentially Quartz/Glass given rough non-standard crystal appearance, but assuming gem-grade rough diamond for analysis)
Natural Diamond (or potentially Quartz/Glass given rough non-standard crystal appearance, but assuming gem-grade rough diamond for analysis) · Rough Octahedron / Raw Crystal
Not Applicable (Rough unpolished crystal) Cut
Carat
Estimated 2.5 to 3.5 carats in rough form
Color
K-M (showing noticeable yellowish tint in rough state)
Clarity
SI1 to SI2 (visible internal inclusions and feather-like features)
Shape
Rough Octahedron / Raw Crystal
Overall Assessment
An interesting natural rough diamond crystal with visible character and inclusions, holding good potential for a skilled cutter to produce a unique finished gem.
Cut Quality
Not Applicable (Rough unpolished crystal)
Brilliance
Low in rough form; will improve significantly upon proper cutting and polishing
Fire
Limited in rough state, expected to be good once faceted
Scintillation
Minimal due to rough, unpolished surface facets
Proportions
Natural growth proportions, high pavilion depth typical of rough octahedrons
Symmetry
Natural octahedral symmetry with slight distortion
Polish
Natural crystal faces (unpolished)
Fluorescence
Medium Blue (typical for many natural rough diamonds under UV)
Inclusions
Internal carbon spots, feathers, and cloud clusters visible
Blemishes
Natural surface trigons, pitting, and rough skin on natural faces
Origin
Likely alluvial or primary kimberlite pipe origin (Africa or Canada)
Treatment Detection
No signs of artificial treatment; completely untreated natural rough
Estimated Value
Varies widely depending on final cut yield, roughly $3,000 to $6,000 as a rough stone
Certification Estimate
GIA or EGL, grading report as rough natural diamond
Investment Potential
Moderate, highly dependent on the master cutter's skill in maximizing finished carat weight and clarity
Similar Diamonds
Other natural unpolished octahedral rough stones of comparable weight and clarity
Setting Suggestions
Can be set raw in organic or rustic bespoke jewelry, or cut into a Cushion or Round Brilliant shape
Care & Maintenance
Standard care for rough mineral specimens; avoid harsh acids and impact against hard surfaces
Interesting Facts
Rough octahedrons represent the most classic natural crystal habit of diamonds, formed deep within the Earth's mantle