Ioun Stones
Aura strong varied; CL 12th
Slot none; Price varies; Weight
These crystalline stones always float in the air and must be within 3 feet of their owner to be of any use. When a character first acquires a stone, she must hold it and then release it, whereupon it takes up a circling orbit 1d3 feet from her head. Thereafter, a stone must be grasped or netted to separate it from its owner. The owner may voluntarily seize and stow a stone (to keep it safe while she is sleeping, for example), but she loses the benefits of the stone during that time. Ioun stones have AC 24, 10 hit points, and hardness 5. The powers of each stone vary depending on its color and shape (see the table).

Color Shape Effect Market Price
Clear Spindle Sustains creature without food or water 4,000 gp
Dusty rose Prism +1 insight bonus to AC 5,000 gp
Deep red Sphere +2 enhancement bonus to Dexterity 8,000 gp
Incandescent blue Sphere +2 enhancement bonus to Wisdom 8,000 gp
Pale blue Rhomboid +2 enhancement bonus to Strength 8,000 gp
Pink Rhomboid +2 enhancement bonus to Constitution 8,000 gp
Pink and green Sphere +2 enhancement bonus to Charisma 8,000 gp
Scarlet and blue Sphere +2 enhancement bonus to Intelligence 8,000 gp
Dark blue Rhomboid Alertness (as the feat) 10,000 gp
Iridescent Spindle Sustains creature without air 18,000 gp
Pale lavender Ellipsoid Absorbs spells of 4th level or lower* 20,000 gp
Pearly white Spindle Regenerate 1 point of damage per 10 minutes 20,000 gp
Pale green Prism +1 competence bonus on attack rolls, saves, skill checks, and ability checks 30,000 gp
Orange Prism +1 caster level 30,000 gp
Vibrant purple Prism Stores three levels of spells, as a ring of spell storing 36,000 gp
Lavender and green Ellipsoid Absorbs spells of 8th level or lower** 40,000 gp

* After absorbing 20 spell levels, the stone burns out and turns to dull gray, forever useless.
** After absorbing 50 spell levels, the stone burns out and turns dull gray, forever useless.

Regeneration from the pearly white ioun stone works like a ring of regeneration. It only cures damage taken while the character is using the stone. The pale lavender and lavender-and-green stones work like a rod of absorption, but absorbing a spell requires a readied action, and these stones cannot be used to empower spells. Stored spells in the vibrant purple stone must be placed by a spellcaster but can be used by anyone (see ring of minor spell storing).
Requirements Craft Wondrous Item, creator must be 12th level; Cost half the market price