Not a diamond; this is a piece of green glass, possibly industrial slag or recycled glass, displaying conchoidal fracture and gas bubbles.

Not a diamond; this is a piece of green glass, possibly industrial slag or recycled glass, displaying conchoidal fracture and gas bubbles. · Raw, uncut, and unpolished irregular shard with conchoidal fracture patterns.

Not applicable (raw, naturally broken or factory slag piece with no standard gemstone facets). Cut

Not a diamond; this is a piece of green glass, possibly industrial slag or recycled glass, displaying conchoidal fracture and gas bubbles. - Raw, uncut, and unpolished irregular shard with conchoidal fracture patterns.

Carat

Not applicable for glass (estimated weight of the fragment is approximately 15-20 carats if measured in gem weight equivalent).

Color

Vivid deep green (Fancy Dark Green in gemstone terms, but purely a glass material).

Clarity

Included / Heavily flawed due to numerous gas bubbles, internal impurities, and particulate matter.

Shape

Raw, uncut, and unpolished irregular shard with conchoidal fracture patterns.

Overall Assessment

The specimen is definitively identified as green glass, not a diamond or any other precious gemstone. It exhibits characteristic features of manufactured glass such as conchoidal fractures and internal gas bubbles.

Cut Quality

Not applicable (raw, naturally broken or factory slag piece with no standard gemstone facets).

Brilliance

Low to moderate vitreous luster, distinct from the adamantine luster of a genuine diamond.

Fire

Minimal to none; glass lacks the high refractive index and dispersion value of diamond.

Scintillation

Poor scintillation due to lack of facet arrangement and internal bubble diffusion.

Proportions

Irregular proportions with no standard crown, pavilion, or table percentages.

Symmetry

Asymmetrical, completely lacking geometric symmetry.

Polish

Raw, unpolished surfaces with natural fracture gloss rather than lapidary polish.

Fluorescence

Inert to mild green under UV light, typical of some glass compositions.

Inclusions

Numerous spherical and elongated gas bubbles, trapped particulate impurities, and swirling flow lines common in manufactured glass.

Blemishes

Surface pitting, abrasion marks, chips along the edges, and minor weathering.

Origin

Synthetic/Man-made glass (industrial slag or decorative cullet glass).

Treatment Detection

No treatments applied; the material is entirely artificial glass by nature.

Estimated Value

Nominal or negligible monetary value (decorative or educational specimen only).

Certification Estimate

Not eligible for certification by major gemological laboratories (GIA, AGS, IGI) as a diamond.

Investment Potential

Zero investment or resale potential.

Similar Diamonds

None; no diamond visually resembles this glass fragment.

Setting Suggestions

Not suitable for fine jewelry settings due to low durability (softness of glass); wire-wrapping could be used for novelty crafts.

Care & Maintenance

Store separately to avoid scratching softer materials, clean with mild soapy water and a soft cloth, avoid harsh chemicals and high impact.

Interesting Facts

Glass slag is frequently mistaken by novices for rough gemstones like emerald, peridot, or colored diamond due to its rich color and vitreous appearance.

Identified on 8/27/2026