Money and Gems are the fuel that runs every part of Sailor Piece. Every weapon purchase, every Stat Master reroll, every Devil Fruit roll and every endgame craft draws on one or both of them. The players who progress the fastest are not the ones who grind the longest — they are the ones who farm currency efficiently and, just as importantly, spend it wisely. This complete guide covers the best sources of Money and Gems, the boosts that multiply your income, and the smartest ways to spend everything you earn.
1Where Money & Gems Come From
Your steady, reliable income is killing mobs at your level — every kill drops Coins directly, and the chests that drop alongside them, ranging from Common all the way up to Mythical, contain Gems and items. Boss kills and the chests they drop are your Gem lifeline through the early and mid game. The Merchant restocks rerolls and items every 30 minutes, so make a habit of swinging by on every cycle. And never, ever skip codes — the big update codes inject hundreds of Gems instantly for zero effort.
| Name | Rarity | Category | Effect |
|---|---|---|---|
| Common Chest | Common | chest | Opens to yield Coins and Gems. |
| Rare Chest | Rare | chest | Opens for Coins, Gems and Common-Rare items. |
| Epic Chest | Epic | chest | Opens for Money, Gems and items. |
| Legendary Chest | Legendary | chest | Opens for Money, Gems and items. |
| Mythical Chest | Mythical | chest | Opens for Legendary/Mythical items, Gems, Coins and rerolls. |
| Secret Chest | Secret | chest | Opens for rare items, Gems and Coins. |
| Aura Crate | Secret | chest | Opens to grant a random Aura. |
| Cosmetic Crate | Secret | chest | Opens to grant a random Cosmetic. |
| Boss Key | Epic | key | Summons Knight, Qin Shi or Soul Reaper at Boss Island. |
| Dungeon Key | Epic | key | Opens Dungeons. |
| Limitless Key | Epic | key | Summons the Strongest of Today boss. |
| Malevolent Key | Epic | key | Summons the Strongest in History boss. |
| Calamity Seal | Legendary | key | Summons the Demon King boss. |
| Slime Key | Epic | key | Summons the Demon Lord boss. |
2Stack Your Income Boosts
- 1
Equip the Fishman race
Fishman adds a flat +15% Money on top of everything else you earn.
- 2
Roll a money-gain Clan
Raikage and Zoldyck both boost Money and Gem gain — ideal currency-farming Clans.
- 3
Climb Ascension
Ascension 10 grants around +105% Money and +100% Gems — a permanent income doubler.
- 4
Chase the level titles
Titles from Apprentice to King permanently raise your Money and Gem gain.
Key takeaway
Money is plentiful — spend it freely. Gems are scarce — hoard them. The single biggest currency mistake is treating Gems like Coins.
3How to Spend What You Earn
Money and Gems should be spent in completely different ways. Money is abundant — spend it freely on weapons, upgrades and anything that moves your progression forward; there is no reason to hoard it. Gems are the opposite. They are scarce, slow to earn, and overwhelmingly most valuable when spent on Stat Master rerolls, where they convert into permanent, build-defining stat upgrades. Never spend Gems on Devil Fruit rolls or convenience purchases — a Gem saved for a Stat reroll is worth several times a Gem spent anywhere else.
Watch out
Never spend Gems on Devil Fruit rolls. The wiki itself flags the Gem Fruit Dealer as poor value — those Gems belong on Stat Master rerolls.
Frequently asked questions
What is the best way to farm Gems?
Open chests from mob kills and redeem codes — the big update codes give hundreds of Gems instantly.
How do I boost Money gain?
Stack the Fishman race, a Raikage or Zoldyck clan, the level titles and Ascension.
Should I save or spend my Gems?
Save them for Stat Master rerolls — that is by far the highest-value way to spend Gems.
Do chests give Gems?
Yes — every chest tier from Common to Mythical can drop Gems, Coins and items.
Is it OK to spend Money freely?
Yes — Money is abundant. Spend it on weapons and upgrades; only Gems need to be hoarded.
What gives the most Money at endgame?
High-level Sea 2 mobs with stacked Money boosts and Ascension 10 active — your income roughly doubles.
How many Gems do codes give?
The big update codes give hundreds of Gems each — they are the fastest Gem source in the game.