Gold-Tone Emerald-Cut Synthetic Ruby and Cubic Zirconia Cocktail Ring

This is a costume jewelry cocktail ring featuring a prominent rectangular emerald-cut center stone in a vibrant magenta or deep raspberry red hue, indicative of a synthetic ruby or glass stimulant. The center stone is held by four corner prongs within an ornate gold-tone setting. Flanking the central stone are two round clear faceted stones, likely cubic zirconia or glass, each secured in individual prong mounts. The decorative gallery surrounding the ruby features a series of rhythmic gold-tone beads and points, giving it a sunburst or crown-like appearance. The band appears to be a standard yellow gold-tone metal, though it shows visible signs of wear with plating loss and tarnishing on the prongs and decorative elements, suggesting it is a base metal rather than solid high-karat gold. The craftsmanship is consistent with mid-to-late 20th-century mass-market jewelry, likely dating from the 1970s to 1990s. While functionally intact, the visible surface abrasions on the stones and the metal oxidation indicate significant previous use.

I have conducted a visual examination of this gold-tone cocktail ring. The piece features a synthetic raspberry-red emerald-cut center stone flanked by two colorless accent stones. My assessment identifies this as a mass-produced costume jewelry item, likely dating from the 1970s through the 1990s. The 'ruby' displays internal clarity and color saturation typical of glass or flame-fusion synthetic corundum, while the metal exhibits significant oxidation and plating loss on the prongs and gallery, confirming a base-metal composition rather than solid gold. The condition is 'fair' due to visible surface abrasions on the facets of the synthetic stones and the aforementioned deterioration of the gold-tone finish. Marketplace demand for mid-century to late-century unbranded costume jewelry is currently saturated, with high availability and low rarity. Comparable items typically sell in 'as-is' condition at estate sales or secondary online marketplaces for nominal amounts. Factors negatively impacting the value include the lack of a designer hallmark and the significant wear to the setting's finish. Positive value drivers are limited to the ring's bold, 'cocktail' aesthetic which remains popular for character or theatrical costuming. Limitations of this appraisal: This assessment is based solely on digital imagery. To provide a definitive valuation, I would require an in-person inspection to perform a streak test or acid test on the metal to rule out low-karat gold, and use a refractometer or thermal conductivity probe to identify the exact composition of the gemstones. Provenance or original packaging could potentially increase the collectible value if associated with a recognized fashion house (e.g., Trifari or Monet), though no such marks are visible here.