How much money do you have to spend on Apex to get an heirloom?

I'm curious, could you elaborate on the cost required to acquire an heirloom in Apex? Is there a specific amount of money that one needs to spend in order to unlock this rare item, or is it determined by a different factor altogether? It would be helpful to know the exact mechanics behind obtaining such a valuable prize, especially for those who are considering investing in the game.