Maybe not full price. You can rarely return anything for free unless it is very close to the purchase time but a 50 percent restocking fee is on the extreme high side. Should be more like 5 to 10 percent.
The diamond gear has no extra overhead like the upkeep for normal weapons... that pretty much makes them life-time addition to the strength of the account without no additional cost. The only time it has a burnout is when you do sell them... even that percentage is much better than that of normal weapons which has 10-20% return rate. We are just trying to make a fair balance between the diamond and non-diamond players. Thanks for understanding.