How to Re-round a bent ring at home
If you have a simple band made of silver, gold, platinum, it can easily be re-rounded back to true round using a few simple tools. You'll need a tapered ring mandrel and a non-marring mallet. They can be ordered here as a package deal: https://amzn.to/4oX4l6J
Next, you will want to place the ring on the mandrel and start softly hitting it with the mallet as you slide it up the mandrel. Once you get to a point where it does not want to move up the mandrel any farther, you should be done! The whole process is easy and take only a minute.