Red Gemstone

Source: npc/quests/quests_umbala.txt

1. In Umbala puzzle devices, use menu option Insert a Red Gemstone.
2. With gemstone in inventory (countitem(716)), insert it.
3. Script runs delitem 716,1 and later returns getitem 716,1 in this flow.
4. This is a quest-mechanic interaction rather than permanent gem loss.