Synthetic Green Gemstone / Costume Jewelry Simulant (likely colored glass or synthetic spinel/cubic zirconia set in vintage-style base metal mounts, not a genuine diamond)
Synthetic Green Gemstone / Costume Jewelry Simulant (likely colored glass or synthetic spinel/cubic zirconia set in vintage-style base metal mounts, not a genuine diamond) · Mixed round brilliant and emerald cuts
Fair to Good (vintage machine-cut or molded faceting) Cut
Carat
Estimated equivalent weight > 5.00 carats per piece (due to large visual size, though composed of simulants)
Color
Fancy Vivid Green (Simulated)
Clarity
Eye-clean (typical of molded glass or high-grade synthetic simulants)
Shape
Mixed round brilliant and emerald cuts
Overall Assessment
A collection of three large green vintage costume jewelry items featuring vivid green simulant stones (likely glass) set in ornate, aged metal mounts, serving as decorative fashion pieces rather than fine gemstones
Cut Quality
Fair to Good (vintage machine-cut or molded faceting)
Brilliance
Moderate vitreous luster
Fire
Low to none, characteristic of colored glass rather than high-dispersion diamond
Scintillation
Basic flash effect from large pavilion facets
Proportions
Non-standard proportions typical of vintage costume jewelry stones with deep pavilions and wide tables
Symmetry
Fair
Polish
Good (typical of glass or coated simulants)
Fluorescence
Inert to Moderate greenish-white under UV light
Inclusions
None visible to the naked eye; possible internal bubbles typical of glass
Blemishes
Minor surface wear and scratches on the mountings and table facets
Origin
Manufactured costume jewelry, likely mid-20th century vintage
Treatment Detection
Coloration achieved via metallic oxides or back-foiling typical of vintage costume pieces
Estimated Value
Low commercial value ($20 - $100 for the set as vintage costume jewelry)
Certification Estimate
Not applicable for major grading labs (GIA, AGS, etc.) as these are non-diamond costume pieces
Investment Potential
Minimal, valued primarily for aesthetic or vintage costume jewelry appeal rather than investment
Similar Diamonds
None, as these are green glass or synthetic simulants rather than genuine diamonds
Setting Suggestions
Already mounted in decorative prong and bezel settings with ornate vintage gallery work
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and excessive moisture to protect the vintage mounts and glued or foiled settings
Interesting Facts
Bright green stones like these are often used in theatrical costumes or vintage statement jewelry to mimic emeralds or high-end peridot