Awarded to the player who finished 2nd on the Christmas Event 2017 leaderboard, this unique knife can't be obtained anymore, which is the whole point of its appeal. It's a leaderboard trophy, so only a few exist and deals are set privately between collectors rather than through normal trades.
Questions players ask
How much is Silver Candy worth?
There is no stable price: trophies rarely change hands and deals happen privately. The number on value lists is symbolic.
Can you still get Silver Candy?
No. It was awarded for a leaderboard place in an event and is not given out again.