Invalid I got scammed badly...

Well a guy that I had in my friendlist for maybe 3 months or something, said he wanted all of my cards(120), 10 csgo skins and 250 gems, and could double the stuff or make more of it, and I was like hey this is a good friend should I trust it? And yes later on I decided ok I will trust this, and so I gave the cards: https://7.lithi.io/Wp90.gif and the skins, where I got cases of 3 cents for back: http://prntscr.com/dctzvb and not to forget the 250 gems: http://prntscr.com/dctvnk and a screenshot of the mid and end of the chat, I sadly can't give the start, because that is lost, it could be on phone, but the person quickly changed his/her name a lot of times, and even the link of his/her profile, but hey don't forget that everyone has a perm link: http://steamcommunity.com/profiles/76561198140500454 Here are the links of the chat as promised: http://prntscr.com/dcwmig
and: http://prntscr.com/dcwnnw Btw this is the 2nd time I post this, I didnt knew what I had to do, but yeah I have made screenshots from the whole chat now. Btw I'm new here so yeah. Here is a screenshot of the profile tho: http://prntscr.com/dcwy79 Evidence is here under, or check the links.

 

Forgat to say, here is whole information of profile:
| steamname: VAFUNCULLO
| steam3ID: [U:1:180234726]
| steamID32: STEAM_0:0:90117363
| steamID64: http://steamcommunity.com/profiles/76561198140500454
| customURL: http://steamcommunity.com/id/behaaaaa
| steamrep: http://steamrep.com/profiles/76561198140500454