Cubic Zirconia or Glass Imitation (Costume Jewelry)
Cubic Zirconia or Glass Imitation (Costume Jewelry) · Round Brilliant (Cluster setting)
Fair to Good (Machine cut historical or costume grade) Cut
Carat
Not applicable for costume stones (aggregate cluster)
Color
Near Colorless to Faint Tint
Clarity
Eye-Clean to Moderately Included
Shape
Round Brilliant (Cluster setting)
Overall Assessment
This piece appears to be vintage or modern costume jewelry featuring round brilliant-cut glass or cubic zirconia simulants arranged in a floral cluster design. While visually striking and charming for decorative wear, it does not possess intrinsic or gem-grade diamond value.
Cut Quality
Fair to Good (Machine cut historical or costume grade)
Brilliance
Moderate
Fire
High dispersion typical of high-refractive-index simulants like cubic zirconia
Scintillation
Basic flash effect due to cluster arrangement
Proportions
Standard costume stone proportions with deep pavilions and large tables
Symmetry
Fair
Polish
Moderate
Fluorescence
Unable to determine without UV testing
Inclusions
Possible internal bubbles or minor crystalline structures typical of simulants
Blemishes
Minor surface abrasions and facet junction wear consistent with vintage costume jewelry
Origin
Manufactured / Laboratory-produced simulant
Treatment Detection
No significant modern treatments detected; standard commercial grade simulant
Estimated Value
Low commercial or sentimental value (costume jewelry piece)
Certification Estimate
Not applicable; not graded by major gemological laboratories like GIA or AGS
Investment Potential
None; purely decorative/fashion value
Similar Diamonds
Comparable to mass-produced vintage paste jewelry or modern cubic zirconia cluster pieces
Setting Suggestions
Currently set in a vintage floral cluster costume brooch or ring mount
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and excessive moisture to protect the vintage metal backing and foil or glue settings
Interesting Facts
Cluster settings like this were extremely popular in mid-20th-century costume jewelry to mimic the appearance of high-value diamond multi-stone pieces using affordable simulants