Three-Stone Diamond and Yellow Gold Engagement Ring

This is a three-stone 'past, present, future' style ring, likely crafted from 10k or 14k yellow gold. The centerpiece is a small round-cut diamond, estimated to be approximately 0.10 to 0.15 carats, flanked by two smaller accent diamonds. The stones are set in what appear to be illusion or miracle settings to enhance their perceived size, held by traditional four-prong arrangements. The shank is a slim, polished band that tapers slightly toward the head of the ring. Notable features include the classic trilogy design, representing a timeless mid-to-late 20th-century style, possibly from the 1980s or 1990s. Regarding condition, there is visible heavy oxidation, tarnish, and accumulated debris around the prongs and the underside of the stones, which dulls the brilliance of the diamonds. The metal shows significant surface scratches and a dulling of its original luster, suggesting frequent wear. No clear maker's marks are visible in the photograph, but the construction suggests mass-market commercial production rather than a bespoke artisan piece. The overall quality appears consistent with standard fine jewelry available at major retailers during the late 20th century.