I must craft the Ring Of Apotheosis and I've got all the things I need except for diamonds. It takes too long to buy them in the Bazaar and finding them in ore or whatever they're embedded inside is next to impossible. I can't find the Transmute Diamond Cards from the people I'm told sell them. Worthington in Marleybone doesn't have the card and Kimba Kalla in Celestia doesn't either. Where can I get some diamonds?
Transmute Diamond is a recipe. You need the Card Crafting Station to use the recipe. If the vendors don't show the recipe for sale, that's because you already bought it. Press J and look at your recipes when you are NOT at a table. Scroll through to regents and you'll see the transmute recipes you have.