Ruby
This clear to deep crimson red corundum stone is
highly valued because of its sparkling shine and vivid hues.
Folklore generally holds rubies to be lucky objects.
A ruby included in any wand with an evocation spell increases
the save DC against the wand’s effect by +2. If no
saving throw applies or is allowed, it instead adds +2 to the
effective caster level of the effect.
Material Cost: 5,000 gp.