Large Cutting Disc for Jade

Large Cutting Disc for Jade. The object is circular and flat with a raised circular section in the center. The object has a dark brown and gray color with a metallic sheen. The object appears to be made of metal. The background is a plain gray color. The object has a rough texture and appears to be old. The edge of the object is slightly raised. The object has a small shadow on the left side. The image is a close-up shot.