Gems can be found with the Gem Finder bought in the shop after getting the Community Center.
Basic Gems
| Gem | Drop rate | Selling price |
|---|---|---|
|
1/100,000 | 100,000 
|
|
1/300,000 | 200,000
|
|
1/500,000 | 500,000
|
|
1/1,000,000 | 1,000,000
|
  |
?/? | 25,000,000 |
Note: Selling Gems is not recommended, unless you are trading.