Another idea: golden gem-lined brass knuckles or a fancy cestus (as long as it doesn't cover the wrist). For brass knuckles I thought of just a simple golden strip that is flush with the fist, like this: sexy.

For cestus, I rather like the idea of roaring lion head, like the one in God of War except much smaller and positioned in such a way so as not to obstruct the wrist. The one in the game