Non-Diamond (Man-made Glass/Cullet)
Non-Diamond (Man-made Glass/Cullet) · Rough Fragment with Pressed Pattern
Not Applicable (Decorative pressed glass pattern) Cut
Carat
Estimated 20-30 carats (based on size relative to fingers)
Color
Champagne/Light Brown tint
Clarity
I3 (Heavily included/Industrial grade appearance)
Shape
Rough Fragment with Pressed Pattern
Overall Assessment
The object is a piece of man-made textured glass, commonly referred to as cullet or sea glass if found near water. It lacks the crystal structure, refractive index, and hardness of a diamond.
Cut Quality
Not Applicable (Decorative pressed glass pattern)
Brilliance
Poor (Low refractive index characteristic of glass)
Fire
None visible (No spectral dispersion)
Scintillation
Negligible (Dull light return)
Proportions
Non-standard (Flat shard with cross-hatch texture)
Symmetry
Poor (Irregular rough edges)
Polish
Poor (Surface pitting and abrasions visible)
Fluorescence
Unknown (requires UV light), likely none
Inclusions
Bubbles, flow lines, and dirt trapped in surface crevices
Blemishes
Heavy chipping, abrasions, and fractures along the edges
Origin
Post-consumer waste (likely a fragment of a pressed glass bowl or textured window)
Treatment Detection
Molded or pressed pattern applied during manufacture
Estimated Value
$0 - $5 (Nominal value as decorative glass debris)
Certification Estimate
Ineligible for diamond grading labs (GIA/AGS/IGI)
Investment Potential
None
Similar Diamonds
None (This is not a diamond; it shares no optical properties with carbon-based gemstones)
Setting Suggestions
Not recommended for fine jewelry; possible use in found-object art
Care & Maintenance
Wash with soap and water; handle carefully as edges may be sharp
Interesting Facts
The diamond-shaped grid pattern is a common mass-production texture for vintage pressed glassware.