About 1200 gems, what is a priority purchase?

Title. If I convert all my gold to gems I get around 1300 gems. What upgrades should I look for?

I already have:

- All living worlds

- Enough character slots (I don't need more than 5)

- Enough bag slots for my main character

- 3 Bank slots (which I think are enough)

- I don't have any extra equipment slots on my main character, but I don't think I need them at this time.