Some bosses can drop 600 GS jewlery at which point they become legendary rarity with an additional perk. I assume you have to farm your jewlery watermark up to be able to get these 600 GS legendaries to drop.
However is there currently an efficient way to increase jewelry GS?
Any idea which ones specifically are good to farm with a lot of jewelry drops? I feel like all the loot pools are really cluttered with other type drops so getting jewelry is rare atm let alone a GS increase…