Gems are available from the in-game store!
They can also be gained by beating levels - especially the super hard levels - and from unlocking new areas of land (especially the Secret, Veiled or Secluded Gardens!).
As well as this, we will be running competitions via our social media pages and so it's definitely worth joining us there!
You can mainly find us here: https://www.facebook.com/groups/mergegardensplayers
And here: https://www.reddit.com/r/MergeGardens/
As well as here: https://www.instagram.com/mergegardensofficial/?hl=en