I had a few Crimson Behelit gems in my inventory, i don’t remember how many but i had a rank 3 for sure, and they’re gone. I can’t remember since when but I definitely did not use them to upgrade something else. I checked on stored item as well
Device Type: IOS
Device Model: iPhone 16 Pro Max
Device Operating System: 18.6.2
Diablo Immortal App Version: 4.0.4