Natural (Rough Crystal / Alluvial Pebble)
Natural (Rough Crystal / Alluvial Pebble) · Uncut / Rough (Rounded Pebble/Octahedral form weathered)
Not Applicable (Rough un-faceted stone) Cut
Carat
Estimated 4.5 - 6.0 carats
Color
Near Colorless to Faint Yellow (G-K range estimated)
Clarity
Included (I1 - I2 range due to surface texture and internal cloudiness)
Shape
Uncut / Rough (Rounded Pebble/Octahedral form weathered)
Overall Assessment
An interesting, natural rough diamond or quartz pebble showing signs of alluvial transport with a frosted, textured surface requiring professional evaluation for exact gemstone composition and cutting potential.
Cut Quality
Not Applicable (Rough un-faceted stone)
Brilliance
Low to moderate due to rough, frosted exterior surface
Fire
Minimal dispersion until cut and polished
Scintillation
Poor due to lack of facets
Proportions
Natural crystal form, high depth percentage due to un-faceted rough state
Symmetry
Natural asymmetrical rough pebble
Polish
Natural weathered/etched surface (no artificial polish)
Fluorescence
Indeterminate from visual assessment (typically medium blue in natural rough)
Inclusions
Internal clouds, feathers, and potential mineral inclusions visible under magnification
Blemishes
Natural surface pitting, trigons (growth marks), and abrasion marks from alluvial transport
Origin
Alluvial deposit (river or marine secondary deposit)
Treatment Detection
No treatments detected; entirely untreated natural rough
Estimated Value
Low to moderate as rough material ($500 - $1,500 depending on cutting yield)
Certification Estimate
GIA or similar primary lab would issue a rough diamond certificate or report weight/dimensions only
Investment Potential
Moderate, highly dependent on the potential yield after professional cutting and polishing
Similar Diamonds
Alluvial rough diamonds of similar size and clarity grade
Setting Suggestions
Organic bezel setting to preserve the raw, natural aesthetic of the uncut crystal
Care & Maintenance
Standard jewelry care, though rough stones are durable; avoid harsh acids
Interesting Facts
Stones found in this condition have traveled miles in riverbeds, surviving the harshest natural forces