Not a diamond; appears to be coated or treated quartz/glass simulant
Not a diamond; appears to be coated or treated quartz/glass simulant · Rectangular Step Cut / Emerald Cut
Fair to Poor Cut
Carat
Estimated 3.00 to 5.00 carats visually, depending on depth
Color
Iridescent / Multi-color display due to coating
Clarity
Included / Heavily flawed internally and surface-distorted
Shape
Rectangular Step Cut / Emerald Cut
Overall Assessment
This specimen is an imitation gemstone featuring a surface treatment to create iridescent effects, possessing no gemological relation to natural or lab-grown diamonds.
Cut Quality
Fair to Poor
Brilliance
Low due to internal degradation and surface coating interference
Fire
High iridescent dispersion caused by thin-film interference on the surface
Scintillation
Poor pattern of light reflection, dominated by flash-effect coloring
Proportions
Medium to deep pavilion, standard step-cut table
Symmetry
Fair
Polish
Fair, showing surface abrasion and coating wear
Fluorescence
Inert to Moderate (cannot be definitively tested visually)
Inclusions
Heavy internal fracturing, cleavage planes, and foreign material trapping
Blemishes
Surface scratches, pitting, and coating flaking
Origin
Synthetic / Imitation with applied artificial coating
Treatment Detection
Surface coating (Aura coating / thin film deposition) clearly visible via iridescent sheen
Estimated Value
Minimal (low-value novelty or costume jewelry component)
Certification Estimate
Major labs (GIA, AGS, IGI) would not issue a diamond grading report for this specimen
Investment Potential
None; holds no resale or investment value as a precious gemstone
Similar Diamonds
None, as this is a heavily treated imitation gemstone rather than a genuine diamond
Setting Suggestions
Bezel or protective prong setting in costume metals like brass or plated silver
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and abrasive surfaces which will strip the delicate surface coating
Interesting Facts
Surface coatings like 'mystic' or 'aura' treatments use vapor deposition of metals to create rainbow effects on inexpensive host stones