Men's 10k Yellow Gold and Synthetic Blue Sapphire Signet Ring

This is a men's signet-style ring crafted in 10k yellow gold, featuring a large, lab-created blue sapphire. The central stone is an emerald-cut or square-faceted synthetic sapphire with a rich, dark blue saturation. It is securely bezel-set within a chunky, high-polish yellow gold mounting that tapers into a wide shank. The design is characteristic of mid-to-late 20th-century men's jewelry, approximately circa 1970s-1980s, prioritizing a bold and masculine aesthetic. The gold shows minor surface scratches and a light patina consistent with moderate wear, but the overall structure appears sound. The stone exhibits decent clarity with no visible major chips along the facets from this perspective. The craftsmanship is typical of commercial-grade fine jewelry, likely featuring a hollowed-out under-gallery to reduce weight while maintaining a substantial appearance. While no hallmark is visible in the photo, the provided context indicates a 10k gold purity. Its substantial width and classic rectangular face make it a prominent accessory from its era.