Mid-Century Modern Diamond and 14K Gold Geometric Pendant

This is a vintage geometric pendant crafted in a distinct Mid-Century Modern architectural style, likely dating from the 1960s or 1970s. The outer frame is constructed of high-polish yellow gold, featuring a rectangular silhouette with a hollowed-out, teardrop or ovoid interior. Suspended vertically within this void is a diamond-shaped (lozenge) rhodium-plated or white gold plaque. This inner element is pavé-set with approximately eleven small round brilliant-cut diamonds. The edges of the white gold setting feature fine milgrain detailing, a classic jewelry technique that adds texture and vintage character. The pendant is suspended by a simple tapered bale from a fine square-link box chain in matching yellow gold. The yellow gold has a warm, rich tone suggestive of 14K or 18K purity. Regarding condition, the metal exhibits minor surface abrasions and micro-scratching consistent with light wear and age, but lacks major dents or structural deformation. The diamonds appear well-matched in color and clarity from a visual inspection, though specific grading would require magnification. There are no visible maker's marks or hallmarks on the front, but they are likely located on the reverse side or the clasp of the chain. This piece represents a high level of craftsmanship, blending brutalist-inspired geometry with classic fine jewelry accents.