Probable Glass or Quartz (Not a Diamond)
Probable Glass or Quartz (Not a Diamond) · Rough / Irregular Fragment
Uncut / Raw Fragment Cut
Carat
Estimated 10-15 carats (visual size based on fingers)
Color
Colorless / Clear
Clarity
Not Applicable (Contains heavy fractures and internal cleavage)
Shape
Rough / Irregular Fragment
Overall Assessment
The specimen is a non-diamond fragment, likely glass or common quartz. It lacks the adamantine luster, specific gravity appearance, and geometric crystalline structure of a raw diamond macle or octahedron.
Cut Quality
Uncut / Raw Fragment
Brilliance
Low; lacks the high refractive index characteristic of diamond
Fire
Very Low; no significant spectral dispersion observed
Scintillation
Poor; surface reflections only
Proportions
N/A - Non-geometric fragment
Symmetry
N/A - Irregular shape
Polish
N/A - Natural/Broken surface texture
Fluorescence
None visible under natural light
Inclusions
Large conchoidal fractures, internal veining, and surface pitting
Blemishes
Severe impact marks and jagged edges
Origin
Terrestrial (likely industrial glass or common silicate mineral)
Treatment Detection
None; appears to be raw waste material or natural quartz fragment
Estimated Value
Minimal decorative value ($0 - $5)
Certification Estimate
Unlikely to be accepted by GIA/AGS as a diamond; may be identified as glass or silica by a gem lab
Investment Potential
None
Similar Diamonds
None; does not share optical properties with diamond
Setting Suggestions
Not recommended for fine jewelry; possible use in wire-wrapped costume jewelry
Care & Maintenance
Avoid impact as conchoidal fractures suggest brittleness common in glass
Interesting Facts
The specimen exhibits conchoidal (shell-like) fracturing, which is a hallmark of glass or quartz but is not how diamonds typically break (diamonds have octahedral cleavage).