Increased Critical Strikes Support

Increases the chance of causing a critical strike with linked skill(s).

Gem Leveling

Level	Required Level	Required Intelligence	Increased Critical Strike Chance	Experience to Level
1	31	42
2	33	44	74%	225,766
3
4
5	39	51	80%	431,204
6	41	54	82%	528,465
7
8	45	58	86%	782,325
9
10
11	47	61	87%	1,488,645
12
13	52	67	93%	2,573,731
14	54	69	98%	3,351,223
15	55	70	100%	9,826,462
16	56	72	101%	21,126,787
17
18
19
20

Gem Quality

A single point of increasing the quality of the gem is rumored to increase the critical strike chance by only 0.35% (POE Official Forums, unconfirmed, see http://www.pathofexile.com/forum/view-thread/13790/page/4/#p585392)