This is a beautiful vintage new old stock piece; it's a bold statement ring with a single black oval onyx cabochon semi-precious gemstone. It contrasts beautifully against the gold band (18k yellow gold electroplate). It's reminiscent of Victorian mourning jewelry and antique onyx or jet pieces, but with modern craftsmanship. It's 18k gold electroplate, and signed DO for Dolphin Ore, an Israeli jeweler that was well-known for its high-quality, nickel-free, gold-plated jewelry. Dolphin Ore made a name for itself for its jewelry that was inspired by major designers like Van Cleef & Arpsels, Cartier, Hattie Carnegie, Tiffany & Co, and Сarrеra y Cаrrera. Its luxurious costume pieces are high-quality, with a distinctive signature look. The ring will come in a gift box.