Levelling legendary gems

I got killed in HC and lost 3 lvl 100 gems. Now to replace those I need to run (minimum) 60 grifts, plus enough rifts for keys. At 3 mins each that’s 3 hours, and it would be more, plus a load of rifts.

We could have a system of upgrade credits, where lower level gems could have more upgrade chances, so instead of 5 upgrades to level 90 gems it could be 15 upgrades to level 30 gems, or something like that.

You don’t want to lose your stuff don’t die or play normal mode.