Ring of life

A Ring of life is an enchanted Diamond ring that will teleport the wearer away to his home location if hitpoints fall below 10%. However, if a player gets hit for more than 10% the ring won't work. The effect does not work deeper in the Wilderness, as teleporting is blocked there, nor does it work in minigames.

A player can craft a diamond ring at level 43 Crafting, using a Ring mould, a Gold bar and a cut Diamond gem. You can also buy it at the jewellery store.
You can then enchant it with the Lvl-4 Enchant spell at 57 Magic to create a Ring of life.