The center stone appears to be a colored gemstone, likely a synthetic ruby or red spinel, rather than a natural colored diamond, given the deep red hue and typical costume/fashion jewelry context.
The center stone appears to be a colored gemstone, likely a synthetic ruby or red spinel, rather than a natural colored diamond, given the deep red hue and typical costume/fashion jewelry context. · Asscher or Square Emerald Cut (Step-cut square shape with cropped corners)
Good to Very Good step-cut alignment Cut
Carat
Estimated around 3.00 to 5.00 carats visually based on dimensions relative to finger size
Color
Deep Fancy Red / Vivid Purplish Red
Clarity
VS1 (Very Slightly Included) based on visual transparency and lack of prominent heavy inclusions
Shape
Asscher or Square Emerald Cut (Step-cut square shape with cropped corners)
Overall Assessment
A striking vintage-style ring featuring a large square step-cut red gemstone (likely a synthetic ruby or colored glass set in yellow gold), offering bold retro aesthetic appeal despite not being a diamond.
Cut Quality
Good to Very Good step-cut alignment
Brilliance
Moderate, typical of step-cut colored stones which prioritize large flashes over intense brilliance
Fire
Low to moderate, step-cuts produce broader flashes of colored light rather than dense dispersion
Scintillation
Classic 'hall of mirrors' effect characteristic of step-cut faceted stones
Proportions
Standard step-cut proportions with a large open table and parallel pavilion steps
Symmetry
Good symmetry with aligned facets visible on the table
Polish
Good overall surface finish
Fluorescence
Cannot be determined accurately without UV testing, likely none to moderate
Inclusions
No major naked-eye visible inclusions, high clarity specimen
Blemishes
Minor surface wear consistent with vintage or pre-owned costume jewelry settings
Origin
Likely lab-created corundum (Verneuil process synthetic ruby) commonly used in vintage cocktail rings
Treatment Detection
Commonly synthetic in origin for this color and cut style in vintage fashion rings
Estimated Value
Low market value (under $100) if synthetic/glass or costume jewelry, higher if verified natural corundum ruby
Certification Estimate
Not applicable for certified diamond grading laboratories as this appears to be a colored stone or costume piece
Investment Potential
Minimal, valued primarily for sentimental or decorative vintage fashion appeal
Similar Diamonds
Not applicable; comparable to vintage synthetic ruby cocktail rings
Setting Suggestions
Classic yellow gold or vintage four-prong basket setting as currently shown
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh ultrasonic cleaners if treated or composite
Interesting Facts
Square step-cut red stones set in yellow gold were immensely popular in mid-century cocktail rings and synthetic ruby production flourished during that era