Natural quartz or potentially industrial glass fragment (not a diamond)
Natural quartz or potentially industrial glass fragment (not a diamond) · Irregular raw fragment / Broken piece
Not applicable (uncut raw fragment / broken piece) Cut
Carat
Estimated equivalent weight ~15.0 carats based on volume
Color
Colorless / Transparent
Clarity
Included / SI2 equivalent due to internal fractures and surface irregularities
Shape
Irregular raw fragment / Broken piece
Overall Assessment
Visual inspection indicates this is a transparent, broken fragment of quartz or glass rather than a diamond, lacking the characteristic adamantine luster, high refractive index, and crystal habit of diamond.
Cut Quality
Not applicable (uncut raw fragment / broken piece)
Brilliance
Low to moderate vitreous luster
Fire
Minimal to none (typical of quartz or glass rather than diamond)
Scintillation
Poor due to lack of standard facet alignment
Proportions
N/A (unfaceted raw stone)
Symmetry
Asymmetrical / Irregular
Polish
Natural rough surface with conchoidal fracture patterns
Fluorescence
Inert to faint
Inclusions
Conchoidal fracture lines, internal stress cracks, and minor mineral or debris inclusions
Blemishes
Surface chips, deep conchoidal fracture marks, and rough patches
Origin
Unknown natural mineral or manufactured glass fragment
Treatment Detection
No obvious treatments detected, appears as a naturally broken or discarded piece
Estimated Value
Minimal monetary value (less than $10 as a mineral specimen or craft glass)
Certification Estimate
Not eligible for GIA/AGS diamond grading; would be evaluated by a general gemological lab like GIA as quartz if tested
Investment Potential
None as an investment
Similar Diamonds
None (this specimen does not share optical or physical properties with diamond)
Setting Suggestions
Wire-wrapping or bespoke organic bezel setting if used for artisanal jewelry
Care & Maintenance
Standard gentle cleaning with warm soapy water and a soft brush
Interesting Facts
Displays prominent conchoidal fractures typical of amorphous materials or quartz, often mistaken for precious rough stones by novices