18 Ct Natural Silver Sheen Obsidian Oval Cabochon featuring a beautiful natural silvery sheen that creates an elegant shimmer when viewed under light. This polished gemstone measures 27x17x5 mm and showcases a smooth surface with attractive natural reflections. Its classic oval shape makes it perfect for crafting unique rings, pendants, necklaces, and other custom jewelry designs. An excellent choice for gemstone collectors and jewelry makers.