Not a diamond (appears to be green glass / slag glass with conchoidal fractures)

Not a diamond (appears to be green glass / slag glass with conchoidal fractures) · Rough / Ungraded / Irregular fragment

Not applicable (uncut raw fragment) Cut

Not a diamond (appears to be green glass / slag glass with conchoidal fractures) - Rough / Ungraded / Irregular fragment

Carat

Not applicable (glass material)

Color

Vivid Green (Fancy Intense Green simulation)

Clarity

Not applicable for glass (contains internal flow lines and bubbles)

Shape

Rough / Ungraded / Irregular fragment

Overall Assessment

The specimen displayed in the image is not a diamond or a gemstone, but rather a piece of vibrant green glass displaying characteristic conchoidal fractures and internal flow lines.

Cut Quality

Not applicable (uncut raw fragment)

Brilliance

Vitreous reflection typical of glass

Fire

Very low dispersion compared to diamond

Scintillation

Poor due to lack of standard facet arrangement

Proportions

Not applicable

Symmetry

Not applicable (irregular natural or broken shape)

Polish

Raw fracture surfaces with vitreous luster

Fluorescence

Unknown without UV testing

Inclusions

Internal swirl marks, flow lines, and gas bubbles typical of manufactured glass

Blemishes

Surface chips and conchoidal fracture ripples

Origin

Man-made glass / Cullet glass

Treatment Detection

Colored glass substitute, no diamond treatment applicable

Estimated Value

Nominal decorative or collector value (low monetary value)

Certification Estimate

Cannot be certified as a diamond by standard gemological labs (GIA/AGS/IGI)

Investment Potential

None as an investment gem

Similar Diamonds

None (this specimen does not share properties with diamond)

Setting Suggestions

Wire-wrapping or artisan crafting if used as a decorative specimen

Care & Maintenance

Standard care; avoid harsh impacts as glass is prone to chipping and scratching

Interesting Facts

Green glass is frequently mistaken for rough emerald, green diamond, or green tourmaline due to its vibrant color and conchoidal fracture pattern.

Identified on 8/27/2026