Gems are one of the premium currencies of the game, and can be bought by real cash. Gems can also be obtained in all the tradeskill activities as a global drop, expeditions, navigation chests, keys - and, rarely, captchas. Gems are used on special, global boosts, or can be sold on the market for a large profit.
Work Stamina: Edit
Increases your workload by 1 for each buy and can be useful, since it allows you to idle for longer without having to refresh your stamina. (NOTE: Each 15th purchase of stamina increases the price by 1).
Item Drop Rate: Edit
Increases your chance to find global drops. Each purchase increases this boost by 1%, up to a max of 500%. (NOTE: each 5th purchase of item drop rate increases the price by 1 gem).
Gold Drop Rate: Edit
Increases the amount of gold found from global drops and activities like selling, applied as a multiplier. Each purchase increases this boost by 1% and the max is 500. (NOTE: each 5th buy of gold drop rate increases the price by 1 gem).
Resources Found: Edit
Increases the quantity of resources found from tradeskill attempts. Unlike the relic resources boost, this is applied as a multiplier. Each purchase increases this boost by 1%. (NOTE: each 5th purchase of resources increases the price by 1 gem).
Global EXP Rate: Edit
This increases your EXP rate in both tradeskills and battles, so it is a good buff if you want faster level ups. Each buy increases it by 1% and the max is 500. (NOTE: each 5th purchase of global EXP rate increase the price by 1 gem).
Item Quality Found: Edit
When you find an item, it always have 9 segments, and a segment can be either broken, unlocked or enchanted. What IQF does, is it reduces chances to get a broken segment and increases the chance to get a unlocked or enchanted segment. Each purchase increases it by 1% and the max is 500. (NOTE: each 5th purchase of item quality increase the price by 1 gem).
Expedition Slots: Edit
Gives you another expedition slot, so you can run more expeditions at the same time. (2nd slot cost 250 gems, 3rd 1000 gems, 4th slot 2500)
Miden Shards Edit
Miden Shards is the other premium currency. They are a lot rarer than gems, and can only be obtained via very rare global drops, rare drops from high tier navigation chests or through purchases with real cash.
Miden Shard Uses:Edit
Miden Shards can be used to increase certain gem boosts from 500% up to the new cap of 1000%. However, going beyond 500% can be very pricey, as the gem cost per 1% starts at 125 gems and it requires 2 Miden Shards to unlock every 10% after 500%, the gem cost scales up 1 gem every 5th purchase (5%) and the Miden Shard cost scales up 1 shard every 5 purchases (50%), to a cap of 225 gems and 11 Miden Shards for the final 999>1000% upgrade.
The boosts that this can affect are:
Gold Drop Rate
Other Uses: Edit
Miden Shards can also be used to unlock other things such as, a 5th expedition slot, which will cost you 7,500 gems, along with 25 Miden Shards, and Island Special Storage.
These shards can also be used in place of Relics or Gems to reset your currently invested Gems or Relics.