Since no one posted the Grade Shop up yet I might as well. The order of display is as follows. I'll post it on the official forums once it gets back up.

Grade Purchase: Grade Cost
Description
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Skills: 250
Retain learned skills.
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Play Time: 20
Retain play time
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30 Items: 150
Hold up to 30 of each item.
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Items: 110
Retain gels, inderedients and other durable goods.
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Gald: 200
Retain Gald
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Recipies: 50
Retain learned recipes (and titles obtained from recipes).
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Titles: 50
Retain obtained titles.
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Monster Book: 10
Retain Monster Book data.
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Battle Info: 10
Retain battle information such as encounters, and maximum hits.
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Artes: 350
Retain learned artes.
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Maximum HP: 50
Start game with 500 more HP (except monsters).
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Minimum HP: 10
Start with 160 maximum HP.
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Combos: 50
Unify EXP and increase BONUS.
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1/2 EXP: 10
EXP reduces to 1/2
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2x EXP: 300
EXP increased by 2 times.
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10x EXP: 2000
EXP increased by 10 times.
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Grade: 20
Receive more Grade in battles.
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Monsters: 200
Retain befriended monsters.
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2x Damage: 150
Increase damage to bother enemies and allies by 2 times for a speedy battle.
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Skits: 0
Retain skit recollection data.
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A few notes "Items" include synthesis materials but does not include equipment and key items. Though if you carry monsters over you will retain there accessories.

Thanks for posting it do the retained monsters keep their level, skills, and artes?

Yes, also if you carry them over you carry over all there accessories.

Oh, that's cool , and thanks