Not a diamond (appears to be a coated or iridescent specimen, possibly optical glass or resin)
Not a diamond (appears to be a coated or iridescent specimen, possibly optical glass or resin) · Irregular raw fragment
Uncut raw fragment Cut
Carat
Not applicable (non-diamond material)
Color
Iridescent / Fancy multi-color display
Clarity
Not applicable
Shape
Irregular raw fragment
Overall Assessment
This specimen is definitively not a diamond. It exhibits characteristics of a coated or treated material displaying strong artificial iridescence, likely used for ornamental or educational purposes.
Cut Quality
Uncut raw fragment
Brilliance
Low inherent brilliance, relies on surface coating effect
Fire
Extreme artificial spectral dispersion due to thin-film coating
Scintillation
Iridescent play of color across surface
Proportions
Not applicable
Symmetry
Irregular
Polish
Raw / Rough unpolished surface
Fluorescence
Not applicable
Inclusions
Gas bubbles and internal fractures visible
Blemishes
Surface irregularities and coating wear
Origin
Synthetic or treated laboratory/industrial material
Treatment Detection
Significant thin-film coating applied to surface to produce rainbow effect
Estimated Value
Minimal decorative or educational value
Certification Estimate
Not gradable by major diamond laboratories (GIA, AGS, IGI)
Investment Potential
None
Similar Diamonds
None (this is not a diamond)
Setting Suggestions
Not suitable for fine jewelry settings
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and abrasive materials which could strip the surface coating
Interesting Facts
Thin-film interference coatings are often used on glass, quartz, or other substrates to mimic the look of precious opal or treated aura quartz.