Converting Aetheryte Ring

[StouterTaru]

You're generally better off spiritbonding another ring that can actually give you something good instead of the paltry +1 spiritbond increase, but whatever floats your boat.

Edit: and if you're really after that spiritbond+, you'd probably be better off with a Meteor Survivor Ring.

If you are spiritbonding everything but main weapon, you'll complete more pieces/hr using meteor rings over aetheryte, and 2/11 of them won't be automatically junk.