A striking vintage sterling silver ring featuring a bold, sculptural modernist design from the mid-century era. The architectural openwork head displays a brushed, curvilinear crescent motif with textured, linear edge engraving. Nestled off-center within the swirling form is a prominent, round-faceted natural clear rock crystal quartz set securely in a bezel setting. The split-style band features an open, bypass design at the back, making the ring size comfortably adjustable. The inner shank bears an unread antique silver hallmark cartouche, emphasizing its unique craftsmanship and collectible vintage character. This piece has been certified by Gemmologisches Labor Düsseldorf (GLD) for gemstone authenticity. Details Material: Silver Weight: 5,82g Ring size: 54 (adjustable) Top width: 17mm Gemstone: Rock Crystal Quartz Hallmark: Vintage hallmark Certification: Gemmologisches Labor Düsseldorf (GLD) 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.