Kritika: The White Knights/Gems

Gems can be sold or 'enhanced'. This is not the same type of enhancement that applies to items. Gem's 'Enhance' refers to combining to gems of the same type (color and level, e.g. Ruby +2) to make one higher level gem. This is a simple process and only requires two like gems and some gold. With a gem level of +5 or higher, enhance success rates begin to drop. If an enhance attempt fails, the second gem used will be destroyed.

Amethyst
Add'l damage +%
 * +0: 4.00%
 * +1: 4.5%
 * +2: 5.00%
 * +3: 5.50%, 2220 CP
 * +4: 6.00%
 * +5:
 * +6:
 * +7:

Emerald
DEF +
 * +0: 244
 * +1: 378, level 10
 * +2: 470, level 10
 * +3: 585, level 10
 * +4: 729, level 10
 * +5: 907, level 10, 548 CP
 * +6: 1129, level ??, 682 CP
 * +7:

Onyx
Critical Rate +
 * +0: 713
 * +1: 1105
 * +2: 1368
 * +3: 1711
 * +4: 2124, 1132 CP
 * +5: 2645, 1409 CP
 * +6:
 * +7: 4014

Peridot
Damage Reduce +% (208 CP gain per +1; 416 CP gain per 1.00%)
 * +0: 4.00%
 * +1: 4.50%
 * +2: 5.00%
 * +3: 5.50%, 2288 CP, level 10
 * +4: 6.00%, 2496 CP, level 10
 * +5: 6.50%, 2644 CP, level 10
 * +6: 7.00%
 * +7: 7.50%

Ruby
ATK +
 * +0: 300
 * +1: 465
 * +2: 579
 * +3: 722
 * +4: 900
 * +5: 1119
 * +6: 1395
 * +7:

Sapphire
MP +
 * +0: 720
 * +1: 1116
 * +2: 1389
 * +3: 1728
 * +4: 2145
 * +5: 2678
 * +6: 3333, 952 CP
 * +7:

Topaz
HP +
 * +0: 629
 * +1: 1484
 * +2:
 * +3: 3119
 * +4:
 * +5: 6648
 * +6: 10,026
 * +7: