Cubic Zirconia or Glass (Costume Jewelry)
Cubic Zirconia or Glass (Costume Jewelry) · Mixed (Round Brilliant and Baguette)
Fair to Good (typical for machine-cut costume stones) Cut

Carat
Estimated total weight equivalent approximately 1.50 to 2.50 carats across the cluster
Color
Near colorless (simulated D-F)
Clarity
Eye-clean (simulated IF/VVS)
Shape
Mixed (Round Brilliant and Baguette)
Overall Assessment
The item is a vintage costume jewelry cluster ring featuring simulated stones (likely glass rhinestones or cubic zirconia) rather than genuine natural diamonds, set in a multi-stone cluster configuration.
Cut Quality
Fair to Good (typical for machine-cut costume stones)
Brilliance
Moderate white light reflection characteristic of high-index glass or CZ
Fire
High dispersion typical of Cubic Zirconia
Scintillation
Good flash and sparkle from the multi-stone cluster setting
Proportions
Standard standard commercial proportions for costume stones with larger tables
Symmetry
Moderate, standard commercial precision
Polish
Good, standard commercial finish
Fluorescence
None observed
Inclusions
None visible under standard magnification; homogeneous synthetic material
Blemishes
Minor surface wear consistent with vintage costume jewelry
Origin
Synthetic / Manufactured
Treatment Detection
Foil backing or synthetic composition common in vintage costume pieces
Estimated Value
Low commercial value ($20 - $100 depending on vintage costume brand and metal setting)
Certification Estimate
Not applicable for costume jewelry; would not be graded by GIA or IGI
Investment Potential
Low; costume jewelry is valued for aesthetic and vintage collectibility rather than precious stone investment
Similar Diamonds
Vintage costume cluster rings using faux stones and rhinestones
Setting Suggestions
Already set in a vintage cluster ring setting with mixed round and baguette accents
Care & Maintenance
Avoid harsh chemical cleaners and ultrasonic baths; clean gently with a damp cloth and mild soap to protect foil backings and vintage metal
Interesting Facts
Cluster rings combining round and baguette stones were extremely popular in mid-century costume jewelry designs, often mimicking expensive precious diamond cluster rings.