Gold-Toned Cubic Zirconia Sunburst Earring Jackets

This is a pair of circular, sunburst-style earring jackets designed to enhance standard stud earrings. Each jacket features twelve round-cut clear stones, likely cubic zirconia or high-quality glass, arranged in a halo formation. The stones are secured by individual four-prong settings in a bright, yellow gold-toned metal, which appears to be gold-plated brass or a similar alloy. The center of each jacket is hollow with a small integrated loop at the top to accommodate an earring post. Measuring approximately 12-15mm in diameter, these pieces exhibit a classic mid-to-late 20th-century design aesthetic. The construction shows consistent prong work and a polished finish on the metal. There is light surface wear and minor tarnishing visible on the reverse of the metal settings, consistent with gentle use. The stones appear bright and well-set with no missing elements. While no specific maker's mark is visible in the image, the style and packaging suggest a commercial jewelry manufacturer. These are functional accessory pieces typically used to add sparkle and visual diameter to simple diamond or pearl studs.

Based on my visual examination of these gold-toned sunburst earring jackets, I have assessed them as contemporary or late 20th-century costume jewelry accessories. The pieces feature twelve round-cut cubic zirconia stones in a classic halo configuration. My inspection of the prong work shows consistent manufacturing, though the visible tarnishing on the reverse confirms the base metal is a non-precious alloy, likely brass with a gold-plated finish. The condition is good, with all stones present and secure, though the surface wear on the gold-tone plating slightly reduces the secondary market value. The market for costume jewelry earring jackets is robust but highly saturated with mass-produced examples. Comparables for unsigned, non-precious sunburst jackets typically sell in the $20 to $50 range at estate sales or online marketplaces. Their value is primarily functional, as they are used to enhance existing studs rather than serving as standalone investment pieces. Limitations of this appraisal include the inability to perform a streak test or acid test to definitively rule out gold content, though the oxidation pattern suggests plating. Furthermore, I cannot verify the stone hardness without a thermal conductivity probe; while they appear to be cubic zirconia, they could be high-index lead glass. A full authentication would require physical inspection for microscopic hallmarkings, a diamond tester for stone verification, and a weight measurement to determine the density of the base metal.