Not a diamond; this is a piece of curved clear glass or quartz exhibiting thin-film interference/fracture rainbows
Not a diamond; this is a piece of curved clear glass or quartz exhibiting thin-film interference/fracture rainbows · Irregular raw fragment, curved shard
Not applicable (uncut man-made or natural fragment) Cut
Carat
Not applicable (glass/quartz fragment)
Color
Colorless with optical interference colors
Clarity
Not applicable (contains internal stress fractures and bubbles characteristic of glass)
Shape
Irregular raw fragment, curved shard
Overall Assessment
The specimen shown in the image is an amorphous, curved shard of clear glass (or potentially a non-gem quartz fragment) rather than a diamond. It displays conchoidal fracturing and optical rainbow dispersion through internal cracks, confirming it has no gemological value.
Cut Quality
Not applicable (uncut man-made or natural fragment)
Brilliance
Vitreous luster with localized spectral reflections
Fire
Displays artificial rainbow dispersion caused by light refraction through internal stress cracks (not true diamond fire)
Scintillation
Limited to reflections off curved exterior surfaces
Proportions
Irregular shard dimensions
Symmetry
Asymmetrical
Polish
Raw/Unpolished fractured surfaces
Fluorescence
Not applicable
Inclusions
Conchoidal fracture lines and internal stress planes
Blemishes
Surface abrasions, chips, and wear typical of discarded glass
Origin
Man-made glass debris
Treatment Detection
None (standard material)
Estimated Value
Zero monetary value as a gemstone (scrap glass)
Certification Estimate
Cannot be certified as a gemstone (lab analysis would identify as glass)
Investment Potential
None
Similar Diamonds
None, as this is visually and compositionally glass
Setting Suggestions
Not suitable for jewelry setting
Care & Maintenance
Handle with care to avoid cuts from sharp glass edges
Interesting Facts
The rainbow effect seen inside the fragment is caused by light passing through microscopic internal fractures, known as thin-film interference, often mistaken by amateurs for diamond fire.