Not a diamond; this specimen appears to be green glass or synthetic slag, displaying conchoidal fracture patterns characteristic of amorphous materials.
Not a diamond; this specimen appears to be green glass or synthetic slag, displaying conchoidal fracture patterns characteristic of amorphous materials. · Rough uncut fragment / irregular shard
Uncut / Raw (Not faceted) Cut
Carat
Estimated around 15-25 carats based on physical dimensions in hand
Color
Vivid bright green (Fancy Intense Green appearance)
Clarity
Transparent with minor internal flow lines and bubbles typical of glass
Shape
Rough uncut fragment / irregular shard
Overall Assessment
This specimen is a vibrant green piece of glass or slag rather than a genuine diamond or precious gemstone. It exhibits characteristic conchoidal fracture and glassy luster.
Cut Quality
Uncut / Raw (Not faceted)
Brilliance
Vitreous luster reflecting light off smooth fracture faces
Fire
Low dispersion, typical of glass rather than diamond or high-index gems
Scintillation
Minimal, flash effect from large flat cleavage-like planes
Proportions
Not applicable to raw crystalline or amorphous material
Symmetry
Asymmetrical raw fragment
Polish
Unpolished natural fracture surfaces with vitreous luster
Fluorescence
Unknown without UV testing, though likely inert or moderate greenish
Inclusions
Gas bubbles and swirl marks indicative of manufactured glass
Blemishes
Surface conchoidal ripples and chip marks along edges
Origin
Man-made / Industrial or decorative glass cullet
Treatment Detection
Colored glass composition; no natural gemstone treatments apply
Estimated Value
Nominal decorative or collector value (under $10)
Certification Estimate
Not certifiable as a gemstone by standard labs (GIA, AGS, IGI); would be classified as man-made glass
Investment Potential
None; zero resale value as an investment asset
Similar Diamonds
None, as this is glass and not carbon-based diamond
Setting Suggestions
Wire-wrapping or bezel setting if used for craft jewelry
Care & Maintenance
Store separately to avoid scratching softer materials; clean with mild soap and water
Interesting Facts
Green glass cullet is frequently found in fields or rivers and mistaken by novices for raw emerald, rough green diamond, or green tourmaline due to its striking color and conchoidal fracture.