Here are some common practices:
* Wedding Ring: In many cultures, the ring finger of the left hand is used for a wedding ring.
* Engagement Ring: Typically worn on the ring finger of the left hand in many cultures, but sometimes on the right hand.
* Class Ring: Usually worn on the ring finger of the right hand in the United States.
* Signet Ring: Traditionally worn on the pinky finger of the left hand, but can be worn on other fingers as well.
* Other Rings: Some people wear rings on other fingers for fashion or personal reasons.
So, there is no single "ring finger" across all cultures and traditions. It depends on the type of ring and the individual's choice.