Vintage White Gold Round Brilliant Diamond Engagement Ring with Channel-Set Accents

This is a vintage-style ladies' engagement ring featuring a central round brilliant-cut diamond estimated at approximately 0.40 to 0.50 carats. The center stone is secured in a classic four-prong setting that elevates it above the band for maximum light exposure. The shank of the ring is constructed from white metal, likely 14k or 18k white gold given the style and luster, though it could also be platinum. This band features a channel-setting style, containing three smaller round-cut diamonds on each shoulder, tapering slightly toward the back of the band. The design reflects a late 20th-century aesthetic, likely dating from the 1980s or 1990s. Regarding condition, the metal shows visible surface scratches and 'flea bites' consistent with regular wear over several decades. One notable feature is the slightly yellowed tint in the crevices, which suggests the original rhodium plating has worn thin and may require re-plating. The center diamond appears to have a slight warmth in color (possibly in the J-K range) and shows visible internal inclusions under the current lighting, which may affect its clarity grade. The prongs appear structurally sound but show some rounding at the tips due to friction. No maker's marks or hallmarks are visible in the provided image, but they would typically be located on the inner circumference of the band.