Pair of sterling-silver-style post earrings

This item is a pair of stud earrings featuring an organic, teardrop-shaped convex form with a smooth, polished finish. The design is stylistically consistent with late 20th-century modernist jewelry. The objects appear to be constructed from a metallic material; the underside of one earring displays a clear rectangular hallmark that bears a signature reading '925 MEXICO,' suggesting a composition of sterling silver and an origin in Mexico, though this remains an unverified hypothesis without physical testing. Per owner notes, the items are described as thick and heavy, and contain a '925' mark on the reverse. The earrings utilize a post-and-butterfly-back closure, though the visible back appears to be a clear plastic and metal 'clutch' style replacement. In terms of condition, the surfaces show moderate scratching and scuffing consistent with regular wear, along with localized areas of dark oxidation or tarnish. The sculptural, bulbous aesthetic is typical of mid-to-late 20th-century silver craft. Due to the inability to physically inspect the metal purity or laboratory-verify the hallmark, the attribution to sterling silver is based on visible marks that are subject to in-person authentication.

Based on my visual review of the image and the information provided, I have evaluated this pair of modernist-style stud earrings. The design features an organic, teardrop-shaped convex form with a high-polished finish. Per the owner’s notes, the earrings bear a '925' mark on the reverse, which I have identified as a hallmark bearing a signature consistent with '925 MEXICO.' This suggests a possible sterling silver composition and Mexican origin, though I cannot confirm the metal purity or the hallmark's legitimacy from a photograph alone. The surfaces show moderate scratching and what appears to be localized oxidation, which is typical for vintage silver items. The estimate of $45–$85 is based on the hypothesis that the items are indeed sterling silver and represent mid-to-late 20th-century Mexican craft. This style remains moderately popular in the secondary market for vintage jewelry collectors. However, this value is entirely dependent on the materials; if physical testing were to reveal the earrings are instead silver-plated or a base metal alloy, the value would likely drop to $10–$20. Because hallmarks can be misapplied or forged, a physical inspection by a specialist, including a weight check and a chemical acid test or XRF analysis, would be necessary to establish the metal content. Furthermore, the provided description mentions replacement backings, which is common but can slightly affect the desirability for purist collectors. The current estimate assumes the user-supplied claim of the pieces being 'thick and heavy' aligns with solid silver construction rather than hollow-form manufacture.