In addition to Blue Gems and Silvers, there's another currency worth sinking your time into in Lost Ark: Pirate Coins.
Used to buy rare artifacts and collectibles as well as traded in for materials, too, they're highly useful if you want to make sure you get almost everything in Lost Ark.
https://www.playerauctions.com/lost-...oins-lost-ark/
Check out this guide if you'd like to know the ins and outs of this useful currency system and how you can go about collecting Pirate Coins.