L2ItemInstance Item = player.getInventory().destroyItemByItemId("SoulCrystal", takeid, 1, player, this);
if (Item != null)
{
// Prepare inventory update packet
InventoryUpdate playerIU = new InventoryUpdate();
playerIU.addRemovedItem(Item);
// Add new crystal to the killer's inventory
Item = player.getInventory().addItem("SoulCrystal", giveid, 1, player, this);
playerIU.addItem(Item);