Very old Asian Hand Carved Jade Bangle

This is a very rare and very old hand carved Jade bangle. You can see that the carving of the bangle is not perfect upon closer look. A design has been carved on the outside and there appears to be a fracture but not on both sides. I’m not sure if this was part of the jade. It’s 2.5 inches in diameter on the inside and 3 1/16 inches from the outside edges across. My mother had this and I’m not sure where she obtained it but she had a few old pieces.