Anything desired is sought after. Money and love are desired by just about everyone. If your moony eyes don’t have the desired effect, then you’re still not getting seconds on dessert.
If you desire something, you crave it. Something desired, then, is an object of desire. A desired job is one that many people seek. A desired cake looks delicious — you see it and you want to have it. When a type of clothing becomes popular, it’s desired by many. Some things are desired because they are rare, like a comic book with the first appearance of Batman. Anything desired is coveted.