Feb 19, 2019, 19:2902/19/19
Hello!
There are no bugs related to Sapphires' disappearance. The game is developed the way that the in-game currency can be spent only on in-game purchases. Please follow this article to learn where the Sapphires are commonly spent.
If you consider the Sapphires have been lost due to a bug, please provide us with the steps to reproduce the issue. Here is an instruction on how to report bugs.