This ring is made of a dark material you're not familiar with that seems to almost cling to your finger and is set with a polished oval onyx.

While wearing it, you have advantage on any Dexterity (Stealth) checks made in dim light or darkness.

The ring has 3 charges and regains 1d3 charges at dawn. You can expend 1 charge as an action to cast the spell, darkness.