Gifting: If the player already has the item?
It’s pretty easy to ask these things off-handedly to get the information out of your friend without alerting them to your motive.
That said, you would have to open a customer support ticket and ask for a gem refund if they already had it unlocked. I don’t know if that works in the case of gifts, but that’d be your only option.
[VZ] Valor Zeal – Stormbluff Isle – Looking for steady, casual-friendly NA raiders!