Gem Calculations - CoC

Gems are the premium in-game currency used to advance players' villages.
Free gems in Clash of Clans aren't easy to obtain! Gems are the premium currency in Clash of Clans.
This is a very simple reference for:
+ Find out how you can earn free Gems in CoC.
+ Calculate the number of gems you need to buy for a certain amount of gold, elixir or time! Easily.
Clash Gems Guide and Calculator will let you calculate the gem cost for the following in CoC:
+ Time
+ Gold or Elixir
+ Dark Elixir
Disclaimer: This is NOT a cheat. It just helps you to calculate gems you need for some action in CoC.
Hope it helpful!