Non-Diamond (Likely Dyed Agate or Chalcedony)
Non-Diamond (Likely Dyed Agate or Chalcedony) · Tumbled/Baroque (Non-faceted)
None (Tumbled stone) Cut
Carat
Estimated 8.0 - 12.0 carats (based on size relative to carpet fibers)
Color
Opaque Teal/Deep Blue (Not applicable to diamond scale)
Clarity
Opaque (Translucent at edges)
Shape
Tumbled/Baroque (Non-faceted)
Overall Assessment
The object in the image is not a diamond. It is a tumbled semi-precious gemstone, most likely a piece of dyed blue agate. It lacks the crystalline structure, refractive index, and faceting required to be a diamond.
Cut Quality
None (Tumbled stone)
Brilliance
None (Absence of light return)
Fire
None (Absence of dispersion)
Scintillation
None (Absence of sparkle)
Proportions
N/A (Irregular rounded depth)
Symmetry
N/A (Asymmetrical freeform)
Polish
Good (Smooth waxy luster)
Fluorescence
Indeterminate; likely inert
Inclusions
Internal banding and cloudy quartz-like patches typical of cryptocrystalline silica
Blemishes
Minor surface surface pitting and uneven texture typical of tumbled stones
Origin
Likely Brazil or India (common sources for tumbled agate)
Treatment Detection
Likely dyed to achieve the deep teal/blue hue
Estimated Value
$1 - $5 USD
Certification Estimate
Not eligible for diamond grading; would be identified as Agate by GIA Gem Identification report
Investment Potential
None (Common decorative stone)
Similar Diamonds
None. This item is not a diamond and shares no optical properties with one.
Setting Suggestions
Wire wrapping, cage pendant, or simple bezel craft jewelry
Care & Maintenance
Avoid harsh chemicals that could leach the dye; wash with mild soap and water.
Interesting Facts
Agate is a variety of chalcedony characterized by its fineness of grain and brightness of color.