The official GemStone IV encyclopedia.
You analyze the pearl-studded ring and sense that the item is largely free from merchant alteration restrictions. The creator has also provided the following information: This item will summon a tombstone upon your death, to remain there until you breathe once again. TURN will toggle this ability. LOOK to see if the ability is active, if not, RUB it. You get no sense of whether or not the ring may be further lightened.