It's possible to have a full set of unique jewlery (3 charm slots/3 enchantment slots) in FOV. It's a hassle but it is sold by that bandit guy (forget his name) who gives you an extra lockpick skill if you mindread him.
His inventory is random. Everytime you leave his underground hideout and come back his inventory changes. It is not rare that he sells Unique Jewlery items.
I've gotten a full set of unique jewlery that way. Every ring, belt, necklace etc.