Likely Non-Diamond (Glass or Quartz Slag)
Likely Non-Diamond (Glass or Quartz Slag) · Rough/Irregular Cullet
Uncut/Non-gemstone cut Cut
Carat
Estimated 40-70 carats based on size relative to fingers
Color
Colorless / Slight Grayish Tint
Clarity
Included (I) - contains large internal fractures and structural lines
Shape
Rough/Irregular Cullet
Overall Assessment
The specimen lacks the octahedral crystal structure of a raw diamond and the refractive properties of a cut stone. It is highly likely to be a piece of transparent glass cullet or a similar silicate material.
Cut Quality
Uncut/Non-gemstone cut
Brilliance
Poor - lacks the high refractive index of diamond
Fire
Very Low - low dispersion of light visible
Scintillation
Negligible
Proportions
Non-standard, random structural distribution
Symmetry
N/A - Asymmetrical rough shape
Polish
Poor - Surfaces show conchoidal fracturing rather than crystal faces
Fluorescence
None visible under current lighting
Inclusions
Large conchoidal fractures, internal ripples, and stress lines
Blemishes
Severe surface chipping and impact marks
Origin
Likely industrial byproduct or man-made glass (cullet)
Treatment Detection
N/A - Raw material shows no signs of gemstone enhancement
Estimated Value
Minimal decorative or scrap value ($1 - $20)
Certification Estimate
N/A - Grading labs would likely reject as a non-diamond simulant
Investment Potential
None
Similar Diamonds
None - resembles glass cullet or large quartz fragments
Setting Suggestions
Not recommended for jewelry setting in its current state
Care & Maintenance
Fragile - prone to further chipping and scratching
Interesting Facts
The conchoidal (shell-like) fracture pattern is a primary indicator of glass or quartz rather than diamond.