A magnificent harmony of Art Deco geometry and historicist filigree, this vintage plaque brooch is crafted in solid 925 sterling silver with deep antique oxidation. The centerpiece features an elongated, cut-corner rectangular plaque of warm translucent carnelian agate with a smooth polished surface. Enclosing the gemstone is an ornate openwork gallery of scrolling volutes and milgrain arches lavishly pavé-set with shimmering pyrite marcasites. Secured at the reverse by a sturdy pin stem and rollover safety catch, the back of the pierced silver frame is stamped with a crisp 925 purity hallmark. Details Material: Silver Weight: 8.79 g Dimensions: 22 mm × 47 mm Gemstone: Natural Carnelian Agate Tablet & Pyrite Marcasites Origin: Germany / Continental Europe Estimated era: 1920s – 1950s (Vintage Art Deco) Hallmark: 925 Note: We sell antique/vintage pieces of jewelry, so there might be some signs of wear due to their age. Please look at the photos carefully before placing a bid! Note: All items are photographed in a light box under strong lighting to ensure clear detail and color accuracy. However, please note that colors may appear slightly different on screen due to lighting conditions and individual device displays. Shipping: Your item will be packed securely and sent with registered and insured shipping via DHL. As a standard procedure, we send out all objects within 1 or 2 days after receiving confirmation from Catawiki. However, we'd like to clarify that the delivery timeline from our end to your doorstep depends entirely on DHL (German Post), we have no influence on the delivery time; it all depends on DHL and the destination country/city.