Bejewel

The Bejewel menu can be unlocked at level 21 and requires crystals to fill open slots.

Crystals can be placed in open slots on any weapon.

Crystals have a chance to be attained from Dragon Lair

Blue Crystals
Blue Crystals are the lowest tier Crystal. It's maximum stats are lower than a purple crystals minimum stat.

Purple Crystals
Purple Crystals are the highest avaliable tier Crystal. It's lowest stat is higher than a Blue Crystals maximum stat.

Gold Crystals (Unreleased)
Gold Crystals are currently unreleased, although images and data exist in the games database. There is currently no way to obtain them yet.