How many gems does it cost to get a level 5 barbarian king in Clash of Clans?

To upgrade the Barbarian King to level 5 in Clash of Clans, it costs 40,000 Dark Elixir. However, if you choose to use gems for the upgrade instead, it costs 1,200 gems. Keep in mind that upgrading the Barbarian King also requires a level 10 Town Hall.