I heard an unconfirmed report saying that you can't have the same unique jewel in different items. For example, if you get a unique jewel and socket it, then you can't get another of the same jewel and put it in a different item unless you destroy the socketed item or overwrite the original unique jewel by resocketing. This is counterintuitive to me given how jewels are consumed by items. I am looking for confirmation. I had planned to grind out 4 of the same unique pvp jewel.