Spirit ruby

A Spirit ruby is one of the three Summoning spirit gems that can be obtained from single-charm dropping monsters. It is also a possible reward from Treasure Hunter. It gives a 30% chance to save a charm when it is worn while creating summoning pouches. It has 30 charges and loses a charge for every pouch it saves a charm for. When all the charges are consumed, it breaks.

As of 22 September 2014, it can now be mined from the Gem rocks in the Trahaearn area of the Prifddinas.

Once equipped, it will become a spirit ruby (a) and will not stack with other gems in the bank.

If you die with a Spirit ruby in your inventory, it will not be protected under a grave marker, unless you choose it as one of your items kept on death when the respawn interface appears.

Trivia

 * Originally, the spirit ruby was used to store 15 Uncharged Summoning pouches; however, this was changed in response to player feedback. All gems obtained before the update can be converted to the current version of that gem.
 * The message "Your spirit gem saves X charm(s) from being used and ran out of charges in the process." is displayed when a spirit gem is destroyed.