Vintage Oval Jadeite Jade Cabochon Brooch

This item is a vintage brooch featuring a large, oval, high-domed cabochon of jadeite jade. The stone displays a mottled, medium-green hue with characteristic natural inclusions and 'apple green' variations throughout the translucent to semi-opaque body. It is secured in an oval bezel setting, likely crafted from silver or low-karat gold, which has developed a significant dark surface patina indicative of age and metal oxidation. The brooch is designed with a simple, utilitarian metal backing and a traditional pin fastener, visible at the side profile. The craftsmanship suggests a mid-20th-century origin, possibly of Chinese or Southeast Asian manufacture, which was a common period for this minimalist style of jade jewelry. The stone appears to be in good structural condition with smooth surface polishing, though the metal mounting shows signs of wear and heavy tarnishing. There are no immediately visible maker's marks or hallmarks in this view, though the construction is typical of artisanal or souvenir jewelry from the 1940s-1960s. The value and quality are driven primarily by the size, translucency, and specific color saturation of the jadeite cabochon.