Silver plated brass, onyx. 8cm (3 inch) tall.
A few more info since it's getting a lot of views
I do not carve the metals myself, nor cut the stones, I mostly work with brass stampings and stones and alter/unify them in order to create rich layered jewelry. There are 7 different components in this ring.
Thanks for all the hearts and comments
Available here: [link]
Update: I made a pendant out of it as well [link]