I didn’t say fake. I could easily be wrong, but several items ring bells

1. The lines appear right. Too right for me. I agree lines start thick end thin. The carving is too perfect. No lines pierce the outside ring. Every line is perfect.

2. The color appears off. The chip has full color but an odd shade. Almost meant too look old and faded when it’s new

3. It could be the angle in which the picture was taken but the rings don’t appear to be centered. The rings must be centered if made on a lathe

Very well could be legit but I would stay away.