AI Appraisal Estimate

This is a pair of vintage costume clip-on earrings featuring a cluster or 'fringe' design. Each earring is composed of multiple faceted glass crystal beads, specifically treated with an Aurora Borealis (AB) coating. This iridescent finish gives the clear glass a shimmering, rainbow-like appearance that reflects hues of pink, blue, and yellow depending on the light. The beads are rondelle and bicone shapes, suspended from individual metal eye-pins attached to a central silver-tone base. The metal components show signs of oxidation and patina consistent with age, particularly on the jump rings and the paddle-back clip mechanisms. The clip-on findings are a classic tension-style with a smooth paddle back. While no visible maker's mark is present on the back of the clips in this view, the construction and use of AB crystals are hallmarks of the mid-20th century, likely dating from the 1950s to the 1960s. The condition appears fair to good; all crystals seem present, though there is visible grime and surface dust between the clusters, and some minor scratching on the AB coating is noted. The craftsmanship is typical of high-quality mass-produced costume jewelry of the era, utilizing hand-wired assembly for movement.

Based on my visual examination of these vintage aurora borealis crystal cluster clip-on earrings, I have assessed them as typical mid-century costume jewelry, likely dating from the 1950s or 1960s. The iridescent 'AB' coating, developed by Swarovski in collaboration with Christian Dior in 1955, remains vibrant, though minor surface abrasions are visible upon close inspection. The hand-wired construction using silver-tone base metal is consistent with period manufacturing techniques. The condition is fair to good; while structurally sound, there is notable oxidation on the metal findings and accumulated grime within the cluster that requires professional cleaning to restore maximum refraction. The current market for unsigned mid-century costume jewelry is stable, driven primarily by vintage enthusiasts and prop stylists. While these earrings lack a designer signature (such as Miriam Haskell or Weiss), they possess the 'waterfall' or 'fringe' movement highly sought after by collectors of the era. Similar unsigned crystal clusters generally realize between $35 and $80 at boutique vintage outlets or online marketplaces. Limitations: This appraisal is based strictly on photographic evidence. I cannot definitively confirm if the crystals are leaded glass without a refractometer or confirm the metal's composition without a scratch test. In-person inspection is required to check for loose wiring or structural fatigue in the paddle-back tension. A definitive authentication would require provenance documentation or a maker's mark, which may be hidden under the patina or may not exist if these were produced for a department store line. A gentle sonic cleaning is recommended to prevent further corrosion of the eye-pins.