A striking statement of early 20th-century geometry, this authentic Art Deco pendant necklace is crafted in solid silver with a beautifully aged antique patina. The impressive architectural centerpiece features a custom-cut, rectangular black onyx gemstone securely set within a bold openwork frame. The stylized silver mount is intricately detailed with sweeping, machine-age curves and encrusted with sparkling rose-cut marcasites that provide a brilliant contrast to the dark focal stone. Please note that a few tiny marcasites are missing from the setting, a testament to its genuine vintage history that has been factored into the piece's value. The pendant is permanently integrated into a fine double-curb link chain with decorative spacer bars, allowing it to rest perfectly centered on the collarbone, and fastens with a secure spring-ring clasp. Details Material: Silver Weight: 10.86 g Necklace length: 43 cm Pendant dimensions: 14 mm × 11 mm (Onyx stone) Gemstone: Black Onyx & Pyrite Marcasites Condition: good vintage condition (some marcasites missing) Design: Art Deco Geometric Onyx Pendant Necklace Estimated era: 1920s – 1930s (Art Deco) 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.