Not a diamond (Green Glass or Slag Glass exhibiting conchoidal fracture with distinct curved ripple marks known as hackly or conchoidal fracture lines typical of amorphous materials).
Not a diamond (Green Glass or Slag Glass exhibiting conchoidal fracture with distinct curved ripple marks known as hackly or conchoidal fracture lines typical of amorphous materials). · Raw, uncut, amorphous fragment with conchoidal fracture.
Not applicable (Uncut, raw shard). Cut
Carat
Not applicable as this is glass, but visually estimated around 15-20 carats equivalent weight.
Color
Fancy Vivid Green (Imitation/Synthetic color)
Clarity
Not applicable (Contains internal gas bubbles and flow lines characteristic of glass).
Shape
Raw, uncut, amorphous fragment with conchoidal fracture.
Overall Assessment
The specimen shown in the image is definitively not a diamond. It is a piece of green glass displaying classic conchoidal fracture patterns and internal gas bubbles. It has no gemological value as a diamond or precious gemstone.
Cut Quality
Not applicable (Uncut, raw shard).
Brilliance
Low to moderate, glassy luster rather than adamantine diamond luster.
Fire
None (Glass lacks the high refractive index and dispersion of a diamond).
Scintillation
Poor, limited to direct reflections off the glossy fractured surfaces.
Proportions
Not applicable.
Symmetry
Not applicable (Asymmetrical raw fragment).
Polish
Unpolished natural fractured surface.
Fluorescence
Unknown (requires UV testing, common in certain colored glasses).
Inclusions
Round gas bubbles and internal swirl marks characteristic of manufactured glass.
Blemishes
Surface scratches, chips, and conchoidal fracture ridges.
Origin
Man-made glass or industrial slag.
Treatment Detection
Colored via metallic oxides typical of green glass production.
Estimated Value
Minimal to negligible (Decorative or educational specimen value only, roughly $1 - $5).
Certification Estimate
Not certifiable as a gemstone by major labs (GIA, AGS, IGI will identify as man-made glass).
Investment Potential
None. Holds no monetary or investment value.
Similar Diamonds
None (Visually mimics green colored stones like emerald, green tourmaline, or tsavorite garnet, but material is glass).
Setting Suggestions
Not suitable for fine jewelry due to low hardness (Mohs scale ~5.5) and fragility.
Care & Maintenance
Store separately to prevent scratching softer materials, avoid harsh chemicals and ultrasonic cleaners.
Interesting Facts
The curved, shell-like patterns visible on the surface are called conchoidal fractures, which are definitive proof that the material is amorphous (like glass) rather than crystalline (like diamond).