This Copper Containing Agate Cabochon "Not enough copper to be called copper replacement agate" weighs 2.57 carats and measures 12x10x2mm, offering a durable and visually appealing gemstone option. Its polished, smooth surface highlights the unique banding typical of agate, making it ideal for precision jewelry settings where both aesthetic and structural integrity are essential. The copper enhances its natural beauty with a warm, metallic undertone, perfect for sophisticated designs.