Hello everyone! I recently inherited this ring and am mainly wondering what type of stone it is. It reminds me of something like crysoprase but I am not sure. It is strerling silver (marked 925) and also has a stamp that looks like "土". If anyone knows what that hallmark is, that would also be helpful.
The true color is closest to the photo in front of the window.


The true color is closest to the photo in front of the window.


