Ring of stone

A Ring of stone can be made by enchanting an onyx ring using the spell Enchant Level 6 Jewellery.

The Ring of stone transforms the wearer into a lump of rock when worn. The wearer may chat while in stone mode, but any attempts to move will revert the player to their human form. Also, Jagex implies that the Ring of stone may have other future uses. Some practical tactics using a ring of stone could be in Castle Wars or other safe PvP mini-games, as unsafe ones risk a chance of losing your ring. To execute this tactic, simply morph, and then ambush unsuspecting players. Since processes such as poisoning stop when in this form, players could potentially use it in times when they are at risk of dying by morphing to that form and asking a friend to come to their aid.

Note: the Ring of Stone does NOT shield the wearer from attack by NPC's (or by players in areas where PvP attack is allowed), nor does it fool NPC's into not attacking if they encounter the wearer in stone form. A player attacked while in "rock" form will unmorph into human form. If a player is running at the time, the rock will move across the ground unnaturally, which is a giveaway in PvP minigames and PvP worlds.

The Ring of Stone can also be used in the King's Ransom to release King Arthur from his stony imprisonment.

The Ring of Stone is similar in function to the Easter ring.

Trivia

 * The rock which player turns into is one of the oldest 3D models in RuneScape, dating back to the beginning of Runescape Classic. Although there are few left, they can still be found near Port Khazard, Rellekka Mine and in the Brimhaven gold mine.
 * If a player turns on retribution while morphed, it makes the player look like a volcano.
 * The player does not actually "wear" the ring, rather clicking the wear option simply morphs the player.
 * If a player stands in the middle of a fire and then morphs, they look like a camp fire.
 * Other than its looks and the King's Ransom quest,this ring is practicually useless.