Diamond III account

Hey! I'd like to sell my account but i don't really know how much does it worth. Could anyone help me out a bit?

EUW / Diamond III 20 LP

160 normal wins
800 ranked wins this season ( S5 )

challenger s3 / diamond s4 / diamond s5

15.000 IP
0 RP

20 rune pages with all runes

every champion except 5

skins:

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