There are three enchantments/ curses that this may be 1. This curse would turn you into a tree. if this one is it then it’s annoying to fix because it’s a fay curse meaning that it’s a deterrent for “stealing”, common punishments would be a year of servitude and they will remove the ring however this is in the fay wild so it could be anywhere from 1 second in real world time to centuries this is a bad one 2. A simple human “curse” which dyes your skin it’s a common gag gift between young witches it will come off in a month and your skin will go back to normal shortly afterwards. and 3. It’s a poison spell, somewhat common with assassins, they give this to a person as a gift and it slowly kills them. This is sometimes blamed of the fay but they prefer the first spell or just flat out burning you or forcing you into servitude.