The lightstep crystal is probably too cheap. Compare it to the boots of striding and springing (DMG pg. 250), which grants a +10 foot enhancement bonus to your base land speed and a +5 competence bonus on Jump checks for 5,500 gp. The Jump check bonus is worth 2,500 gp, which means the +10 speed bonus is equal to 3,000 gp (2,000 gp if we assume a 50% increase has been applied because of the boots having two separate effects).
The crystal instead increases all movement by 10 feet, and has the added benefit of not occupying an item slot by itself. I'd suggest making the movement speed increase the lesser version of the crystal (with the initiative bonus becoming the least version) and possibly having it affect only base land speed.