Other than the guild recipes and the Token recipes from scrolls I think the only way to get Jewelry recipes is from the various factions in Dunland, Great River, & Eastern Rohan. You'll likely need to be Kindred with those factions in order to get the recipes.
I am going on my (very) faulty memory here so you might want to go check the various faction NPC's to see what they offer.
Fat, Fuzzy, & Disabled............life doesn't get any better!
Kinship: Roxxi Manor