I had a huge pile of emeralds and sapphires and even a few rubies on my head, was carefully making my way back to the hoard, and then I spaced out, moved the wrong way, and screamed so loudly as all my jewels fell to the floor that I scared my dog. 10/10 would (try to) balance again
In all seriousness, this is a great concept with spot-on theming and amazing art. The central balancing mechanic was really fun and strategic. It'd be neat if you got some sort of chain bonus for depositing stacks of jewels into your hoard at once. Great job!