Hi there Lord Wampyrii did you upgrade anything using sapphire boosts or activate anything that needed sapphires for it?

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.