Not a diamond; appears to be coated or treated quartz, glass, or a similar crystal with surface iridescence (such as aura quartz).
Not a diamond; appears to be coated or treated quartz, glass, or a similar crystal with surface iridescence (such as aura quartz). · Irregular / Raw or tumbled crystal fragment
Not applicable (raw/uncut or irregular crystalline form) Cut

Carat
Not applicable
Color
Fancy multi-color (surface coated iridescence)
Clarity
Included / Heavily fractured internal structure visible
Shape
Irregular / Raw or tumbled crystal fragment
Overall Assessment
The uploaded image does not depict a diamond. It shows a heavily included or fractured crystal with a colorful metallic surface coating (such as treated quartz or glass). Gemological testing would confirm it is not carbon-based.
Cut Quality
Not applicable (raw/uncut or irregular crystalline form)
Brilliance
Low to moderate due to surface coating and internal fracturing
Fire
High artificial fire caused by thin-film metallic coating (aura effect)
Scintillation
Fragmented flash patterns due to internal fractures and irregular facets
Proportions
Non-standard, irregular crystal form
Symmetry
Irregular
Polish
Mixed polish and natural crystal faces
Fluorescence
Unable to determine without UV testing
Inclusions
Extensive internal fractures, feathers, and trapped fluid or solid inclusions
Blemishes
Surface scratches, pitting, and coating anomalies
Origin
Synthetic coating applied to natural quartz or manufactured crystal base
Treatment Detection
Surface chemical vapor deposition (CVD) or metal-ion coating (commonly known as aura quartz or mystic quartz treatment)
Estimated Value
Low commercial value ($10 - $50 USD depending on size and novelty use)
Certification Estimate
Not eligible for diamond grading labs (GIA, AGS); would require gemological institute identification as treated quartz or glass
Investment Potential
None; ornamental or decorative mineral specimen only
Similar Diamonds
None (this is not a diamond)
Setting Suggestions
Wire-wrapped or bezel setting suitable for mineral specimens and crystal jewelry
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and abrasive surfaces to prevent damaging the delicate surface coating
Interesting Facts
Coated crystals like 'angel aura' or 'mystic quartz' are created by bonding microscopic layers of precious metals like gold, titanium, or platinum to the surface of a host crystal in a vacuum chamber at high temperatures