Not a diamond (appears to be a water-worn quartz or quartzite pebble, potentially with iron oxide staining)
Not a diamond (appears to be a water-worn quartz or quartzite pebble, potentially with iron oxide staining) · Irregular, natural pebble shape (uncut/rough stone)
Not applicable (unfaceted raw pebble) Cut
Carat
Cannot be precisely determined visually without specific density testing, roughly estimated at 5 to 10 carats based on volume
Color
Brownish-yellow / yellowish-brown (Fancy or off-color for diamond, natural mineral coloration)
Clarity
Not applicable to non-diamond minerals; highly included and fractured relative to gemstone standards
Shape
Irregular, natural pebble shape (uncut/rough stone)
Overall Assessment
This specimen is a natural, unpolished mineral pebble—likely quartz or quartzite—and is not a diamond. It holds no gemological or monetary value as a diamond substitute.
Cut Quality
Not applicable (unfaceted raw pebble)
Brilliance
Poor to none (vitreous to greasy luster on quartz surface)
Fire
None (dispersive power of quartz is very low compared to diamond)
Scintillation
None
Proportions
Not applicable to an unworked pebble
Symmetry
Asymmetrical, natural formation
Polish
Matte to semi-gloss natural water-worn surface
Fluorescence
Unknown without UV testing
Inclusions
Abundant internal fractures, mineral impurities, and potential iron staining
Blemishes
Natural surface pitting, abrasion marks, and weathering
Origin
Alluvial deposit (river or stream bed)
Treatment Detection
None (completely natural weathering and mineral state)
Estimated Value
Nominal value as a common mineral specimen (less than $1 USD)
Certification Estimate
Standard gemological laboratories would identify this as quartz, not diamond; no standard diamond grading certificate would apply
Investment Potential
None as an investment asset
Similar Diamonds
None, as this specimen is chemically and structurally distinct from diamond
Setting Suggestions
Wire-wrapping if used for artisan jewelry; not suitable for standard fine jewelry settings
Care & Maintenance
Standard gentle cleaning with mild soap and water if collected as a mineral specimen
Interesting Facts
River pebbles like this are frequently mistaken for precious gemstones or diamonds by untrained finders due to their smooth exterior texture