Not a diamond; this specimen appears to be red colored glass or slag, or possibly a red gemstone rough such as ruby or spinel, but visually exhibits characteristics common to vitreous material rather than crystalline diamond.
Not a diamond; this specimen appears to be red colored glass or slag, or possibly a red gemstone rough such as ruby or spinel, but visually exhibits characteristics common to vitreous material rather than crystalline diamond. · Rough/Uncut irregular shard
Not applicable (Rough/Uncut) Cut
Carat
Estimated around 15-25 carats based on visual scale
Color
Fancy Deep Red
Clarity
Included / SI (due to internal bubbles and flow lines typical of glass)
Shape
Rough/Uncut irregular shard
Overall Assessment
This specimen is a vibrant red piece of raw or melted material, visually identifiable as glass or slag rather than a genuine diamond or precious gemstone. Professional gemological testing (such as a thermal tester or refractometer) is recommended to confirm.
Cut Quality
Not applicable (Rough/Uncut)
Brilliance
Vitreous luster, low optical brilliance compared to diamond
Fire
Minimal dispersion, far lower than diamond or moissanite
Scintillation
Poor due to lack of facets
Proportions
Not applicable to raw irregular shards
Symmetry
Asymmetrical rough form
Polish
Natural vitreous/fractured luster
Fluorescence
Unknown without UV testing
Inclusions
Internal gas bubbles, flow lines, and swirling patterns common in artificial glass
Blemishes
Conchoidal fracture lines and surface abrasions
Origin
Synthetic / Manufactured glass or industrial slag
Treatment Detection
Colored via metallic oxides typical of stained or art glass
Estimated Value
Nominal / Low value as decorative glass or slag
Certification Estimate
Not certifiable as a gemstone by major diamond labs (GIA/AGS); would be analyzed as non-gem material or glass
Investment Potential
None as an investment
Similar Diamonds
None, as this is not a diamond or even a crystalline gemstone
Setting Suggestions
Wire-wrapping or bespoke artisan bezel if used as a decorative ornamental piece
Care & Maintenance
Standard gentle cleaning with warm soapy water and a soft cloth; avoid harsh impacts as glass is fragile
Interesting Facts
Red glass is often historically mistaken for ruby by novices, a phenomenon famously seen in some crown jewels where spinels and red glass were historically misidentified