Not a diamond; appears to be manufactured glass or quartz crystal based on conchoidal fracture patterns and internal gas bubbles.
Not a diamond; appears to be manufactured glass or quartz crystal based on conchoidal fracture patterns and internal gas bubbles. · Irregular raw fragment / unstructured shard
Not applicable (uncut raw or broken fragment) Cut
Carat
Estimated around 3.5 to 5.0 carats equivalent by visual mass
Color
Colorless / Clear
Clarity
Included due to visible internal gas bubbles and flow lines
Shape
Irregular raw fragment / unstructured shard
Overall Assessment
This specimen is visually identified as glass or quartz rather than diamond, evidenced primarily by the presence of internal bubbles and conchoidal fracture ripples.
Cut Quality
Not applicable (uncut raw or broken fragment)
Brilliance
Low to Moderate vitreous luster
Fire
Very low dispersion compared to diamond
Scintillation
Minimal sparkle due to lack of standard facets
Proportions
Not applicable for raw shard
Symmetry
Asymmetrical raw shard
Polish
Unpolished fracture surfaces with natural conchoidal ripples
Fluorescence
None to Faint
Inclusions
Rounded gas bubbles visible internally
Blemishes
Surface scratches, chips, and irregular fracture lines
Origin
Man-made glass or natural quartz crystal
Treatment Detection
Standard glassy structure with characteristic manufacturing artifacts (bubbles)
Estimated Value
Minimal (low-cost decorative or mineral specimen value)
Certification Estimate
Not applicable for standard gemological labs (GIA/AGS would not certify as diamond)
Investment Potential
None; holds no precious gemstone investment value
Similar Diamonds
None, as this material lacks diamond properties entirely
Setting Suggestions
Wire-wrapping or bespoke bezel setting if used for costume jewelry
Care & Maintenance
Standard gentle cleaning with mild soap and water; avoid hard impacts as glass is fragile
Interesting Facts
Conchoidal fracture lines often mimic natural crystal growth but clearly indicate amorphous or crystalline silicate structures rather than carbon-based diamond