You can create magic rings.
Prerequisites
Caster level 7th.
Benefit
You can create magic rings. Crafting a ring takes 1 Craft Point for every 100 gp in its base price. To craft a ring, you must use up raw materials costing half of the base price.
You can also mend a broken ring if it is one that you could make. Doing so costs half the raw materials and half the time it would take to forge that ring in the first place.
See magic item creation rules for more information.