Mega (?) Jewels +10...?

[extrapayah]

a bit out of topic from the naming, needing three jewel to upgrade to next tier also playing a very big part here. so everytime we want to do tier upgrade, we need to spend effort another 2 more times of our previous effort, for a simply +1 upgrade (in case of primary), when upgrading from noble to exquisite, you need triple effort (by farming or merching) to get an increase of 12.5%, 300% for 12.5%

[resurrected]

a bit out of topic from the naming, needing three jewel to upgrade to next tier also playing a very big part here. so everytime we want to do tier upgrade, we need to spend effort another 2 more times of our previous effort, for a simply +1 upgrade (in case of primary)

Well yea. Reduce it to 2 jewels per upgrade would help. At least from excellent+