wear 2.
You stop using a halo of clarity.
You wear the white diadem of an Order Lord on your head.
You are zapped by the white diadem of an Order Lord and drop it.
You feel the weight of time lift from your shoulders as you wear the white diadem of an Order Lord.

commune 'identify' 2.
You furrow your brow as you look through your possessions.
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the white diadem of an Order Lord can be referred to as 'ribbon diadem white'.
It is worth 0 copper, and is of the 51st level of power.
It is clothing worn on the head.
It is made of cloth and weighs 1 pounds 10 ounces.
When worn, it affects your save vs mental by -4 points,
your mana by 30 points, your age by -10 years,
your constitution by -1 points, your wisdom by 4 points and
your intelligence by 4 points.
A magical aura surrounds it.
Only those of orderly nature could use it.
An orderly aura surrounds it.
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Level : 51 Sex : male Race : elf
Ethos : Orderly Align : Good Class : healer

The item is for mages only, its just handled differently than some other items that have a similar requirement.