Rough natural diamond crystal (uncut, unpolished octahedral fragment or curved-face crystal typical of alluvial/uncut forms)
Rough natural diamond crystal (uncut, unpolished octahedral fragment or curved-face crystal typical of alluvial/uncut forms) · Raw crystal / Irregular rough fragment
Not applicable (uncut rough specimen) Cut
Carat
Estimated 1.5 - 2.5 carats based on visual scale against human fingers
Color
Near-colorless to light brown/yellow tint (G-J range equivalent)
Clarity
Included (I1-I3 equivalent for rough due to visible surface flaws and internal inclusions)
Shape
Raw crystal / Irregular rough fragment
Overall Assessment
This is an interesting, natural rough crystal fragment showing authentic unpolished geological characteristics, suitable for mineral collections or bespoke organic jewelry rather than traditional high-end faceted use.
Cut Quality
Not applicable (uncut rough specimen)
Brilliance
Low to moderate due to rough, unpolished surface diffusing light
Fire
Minimal to none due to lack of standard faceted angles
Scintillation
Poor due to irregular raw surfaces
Proportions
Natural rough proportions, asymmetrical due to natural formation
Symmetry
Natural crystal growth symmetry (distorted natural octahedral/dodecahedral growth lines)
Polish
Natural crystal faces (trigons and growth striations visible rather than human polish)
Fluorescence
Unable to determine without UV light testing (likely None to Faint)
Inclusions
Internal mineral crystals, cloudiness, and feather fractures visible
Blemishes
Natural surface pitting, rough skin, growth lines, and dark spot/inclusion near the edge
Origin
Natural alluvial or primary kimberlite deposit origin
Treatment Detection
No treatments detected; completely natural untreated rough specimen
Estimated Value
Nominal collector or specimen value ($50 - $200 USD depending on exact weight and actual mineral composition)
Certification Estimate
Specialized rough grading or raw gemstone authentication by GIA or local gemological laboratories
Investment Potential
Low investment potential as a gemstone; primarily of interest to mineral collectors or for custom organic jewelry
Similar Diamonds
Other natural unpolished rough diamond crystals and mineral specimens
Setting Suggestions
Raw diamond jewelry, wire-wrapped organic setting, or kept as a raw mineral specimen
Care & Maintenance
Clean with mild soap and warm water; avoid harsh chemicals and ultrasonic cleaners if fractures are deep
Interesting Facts
Rough diamonds display natural growth features like curved faces, striations, and triangular indentation marks called trigons