Vintage Oval Nephrite Jade Ring in Yellow Gold Tone

This is a vintage statement ring featuring a large, vertically oriented oval cabochon of dark green nephrite jade. The gemstone exhibits a mottled, deep forest green coloration with visible internal inclusions typical of natural nephrite. The stone is securely housed within a decorative serrated or 'sawtooth' bezel, which is then recessed into a larger, smooth high-polish oval frame. The ring’s mounting appears to be crafted from a yellow gold-colored metal, though without visible hallmarks, it is unclear if it is solid gold or high-quality gold plating. The shoulders of the ring feature a distinctive ribbed or gadrooned architectural detail, tapering down to a smooth band. The craftsmanship suggests a mid-20th-century aesthetic, possibly 1960s-1970s, reflecting a bold, brutalist-adjacent style. Regarding condition, the metal shows minor surface scratches and a softening of the polish, particularly along the outer frame, indicating moderate wear consistent with age. The jade stone appears intact with no visible surface chips, though it displays a waxy luster characteristic of its variety. There are no immediate visible maker's marks from this angle, but the structural integrity of the setting remains strong.