Not a diamond; this specimen appears to be green glass or slag glass, characterized by conchoidal fractures and internal bubbles.
Not a diamond; this specimen appears to be green glass or slag glass, characterized by conchoidal fractures and internal bubbles. · Raw, unpolished fragment with conchoidal fracture surfaces.
Not applicable (uncut raw fragment). Cut
Carat
Not applicable as this is glass, but visually estimated at roughly 15 to 25 carats equivalent if measured as a gemstone.
Color
Deep vivid green, non-gemological grading applies.
Clarity
Not applicable; contains typical glass inclusions such as spherical gas bubbles.
Shape
Raw, unpolished fragment with conchoidal fracture surfaces.
Overall Assessment
The specimen shown in the image is definitively not a diamond or a natural gemstone. The conchoidal fracture patterns and visible internal bubbles clearly indicate that the material is green glass or industrial slag.
Cut Quality
Not applicable (uncut raw fragment).
Brilliance
Vitreous luster, low optical brilliance compared to genuine diamond.
Fire
Minimal dispersion, far lower than diamond or moissanite.
Scintillation
Poor due to lack of faceted structure and symmetrical light return.
Proportions
Irregular raw shape; no standard facet proportions.
Symmetry
Not applicable (asymmetrical random fracture).
Polish
Raw fractured surfaces with a vitreous to greasy luster.
Fluorescence
Unknown without UV testing, though typical green glass may show weak inertness or moderate yellowish-green fluorescence under long-wave UV.
Inclusions
Rounded gas bubbles and flow lines visible internally, definitive indicators of manufactured glass.
Blemishes
Surface scratches, chips, and conchoidal ripple marks.
Origin
Man-made industrial slag or decorative glass.
Treatment Detection
None needed; material is inherently synthetic glass.
Estimated Value
Nominal value as a decorative mineral specimen or collector's piece ($5 - $20 USD).
Certification Estimate
Not eligible for certification by major gemological laboratories like GIA or AGS.
Investment Potential
Zero investment value.
Similar Diamonds
None, as genuine green diamonds are exceedingly rare and visually distinct.
Setting Suggestions
Not recommended for fine jewelry due to low durability and softness compared to gemstones.
Care & Maintenance
Standard gentle cleaning with warm soapy water and a soft cloth; avoid harsh impacts as glass is fragile.
Interesting Facts
Green glass is frequently mistaken by novices for rough emerald, peridot, or green diamond due to its rich coloration and vitreous luster.