Rubies and Sapphires (Ruby & Sapphire) have in Minecraft Bedrock Edition the natural generation in the world. This means that you can get them yourself, without a creative mode. To do this, go to the caves.
Functions of the Ruby & Sapphire mod
Not all players know that rubies were originally supposed to appear in Minecraft for Android… True, for a long time. As a result, developed from Mojang in a hurry, for some reason, they were removed from the game. Well, the author of the Ruby & Sapphire mod strongly disagrees with the developers – he returned the rubies, and even added sapphires.
In future updates, the author fashion will add the ability to craft in Minecraft items from these gems. But at the moment in Minecraft the ability to create ruby carrots (analogous to gold) is available, as well as blocks. Enjoy your game!