Not a diamond (appears to be a water-worn pebble, possibly quartz, quartzite, or chalcedony)
Not a diamond (appears to be a water-worn pebble, possibly quartz, quartzite, or chalcedony) · Irregular / Rough Pebble
Not applicable (uncut, natural weathered stone) Cut
Carat
Not applicable (mineral specimen, not a gemstone)
Color
Off-white / brownish-gray
Clarity
Opaque / Heavily included
Shape
Irregular / Rough Pebble
Overall Assessment
The specimen pictured is a natural, water-worn mineral pebble—likely quartz or quartzite—and is definitely not a diamond. It lacks the crystal faces, adamantine luster, and physical properties characteristic of diamond rough.
Cut Quality
Not applicable (uncut, natural weathered stone)
Brilliance
Poor / None (opaque material)
Fire
None
Scintillation
None
Proportions
Irregular proportions
Symmetry
Asymmetrical
Polish
Natural tumbled / weathered finish
Fluorescence
Unknown without UV testing
Inclusions
Heavy internal fracturing, mineral staining, and inclusions typical of natural quartz pebbles
Blemishes
Surface pits, fractures, and abrasion marks from natural erosion
Origin
Alluvial deposit (riverbed or beach pebble)
Treatment Detection
No treatments detected (natural weathered stone)
Estimated Value
Nominal / Monitory value negligible (specimen value only)
Certification Estimate
Not gradable by gemological diamond labs (GIA, AGS, etc.)
Investment Potential
None as an investment gemstone
Similar Diamonds
None (this is not a diamond)
Setting Suggestions
Not suitable for standard jewelry settings unless wire-wrapped as an earth-toned specimen
Care & Maintenance
Standard cleaning with warm soapy water and a soft brush
Interesting Facts
Water-worn pebbles often mimic rough diamond shapes to the untrained eye, but lack diamond's high refractive index, hardness, and crystal habit