The Diamond Rod is the endgame fishing rod in Fish It, a Roblox game focused on exploring islands, collecting fish, completing quests, and grinding rare catches. Unlike standard rods you can buy, this rod is earned through one of the most challenging NPC questlines in the game – the Diamond Research quest. Players who manage to complete it will unlock a rod that outperforms even high-tier gear like the Element Rod in luck, catch rate, and overall efficiency.
In this blog, you’ll learn what the Diamond Rod is, why it’s so valuable, all the requirements to obtain it, strategies for completing the quest efficiently, and tips to speed up the grind.
1. What Is the Diamond Rod?
The Diamond Rod represents one of the top-tier fishing rods in Fish It, designed primarily for advanced players and collectors:
- It has extremely high luck, speed, and weight capacity, making it best suited for catching secret and high-end fish.
- It cannot be purchased or found randomly – you must earn it by completing the Diamond Research NPC quest.
- This rod significantly improves the odds of catching rare fish and reduces the grind time compared to other rods.
Unlike most rods that can be bought in various stores across islands, the Diamond Rod is exclusive to the endgame questline, making it a symbol of progression and achievement.
2. Where the Diamond Rod Quest Begins
To start the Diamond Rod quest, follow these steps:
- Go to Fisherman Island – your primary hub for fishing progression and NPCs.
- Enter the Mutation Cellar – a special area marked with a large diamond poster in-game .
- Talk to the Diamond Researcher NPC, commonly referred to as Larry.
- Accept the Diamond Research quest to trigger all mission objectives.
This NPC sets up all the tasks required for obtaining the Diamond Rod – and it’s here that your long grind officially begins.
3. Diamond Rod Quest Requirements (Explained)
The Diamond Rod isn’t a simple reward – it involves multiple difficult objectives. You must complete all of the following:
• Own the Element Rod
Before anything else, you must already possess the Element Rod. This ensures you are experienced and equipped to tackle the harder parts of the quest.
• Catch a Secret Fish at Coral Reefs
Secret Fish are extremely rare, and the Coral Reefs’ secret target is one of the prerequisites. The catch must be new – previously obtained secrets do not count.
• Catch a Secret Fish at Tropical Grove
Similar to Coral Reefs, but this area has fewer secret species – making it the recommended starting point for efficiency.
• Bring a Mutated Gemstone Ruby
Ruby items can be found in the Tropical Grove, the open ocean, or the Lost Isle Treasure Room. However, you must use a Mutation Potion or get extremely lucky to produce a mutated gemstone version.
• Bring the Loch Ness Monster
The Loch Ness Monster secret fish spawns at Kohana Island – a volcanic region with a notoriously low spawn rate. You must catch it and carry it in your inventory when submitting the quest.
• Catch 1,000 Fish Using Perfect Throws
This is the most time-intensive mission. Only catches made with a perfect throw count – and if you miss the timing, it won’t count at all.
Once all these are complete, return to Larry and exchange your completed missions to claim the Diamond Rod.
4. Tips to Complete the Quest Faster
This quest is a grind, but there are ways to make it less painful:
Focus on Easy Secret Spots First
- Tropical Grove only has one secret fish (Great Whale), making it simpler to check off early.
- Coral Reef has a larger secret pool but is still essential.
Use Luck Buffs and Enchants
- Potions that boost Luck increase secret fish chances.
- Apply the Perfection enchant from the enchant store to make perfect throws automatic.
Combine Activities
- When searching for Rubies, fish at Tropical Grove – you may catch secret fish at the same time.
- Fish during server events or boosted luck periods to improve spawn rates.
Plan for Patience
- Secret fish and rare catches like the Loch Ness Monster have very low spawn rates. Expect hours or even days of effort for certain steps.
5. Common Mistakes to Avoid
Even experienced players make errors when attempting the Diamond Rod quest:
- Using old catches – Secret fish caught before accepting the quest don’t count.
- Unmutated gemstones – Only mutated versions fulfill the Ruby requirement.
- Incomplete perfect throw count – Any non-perfect throws don’t progress the 1,000 total.
- Incorrect inventory setup – Make sure required items (like Loch Ness Monster) are in your inventory when talking to Larry.
Double-checking each requirement before turning in the final quest prevents wasted time.
6. Is the Diamond Rod Worth It?
Absolutely – but only if you’re committed to late-game progression:
- The Diamond Rod’s stats significantly outperform most rods available via shops or earlier quests.
- It makes catching secret and rare fish much more efficient.
- Many players consider it an essential tool for completing their collection and inventory goals.
However, be prepared: the grind is long, and randomness plays a big role in the secret fish requirements.
7. Conclusion
The Diamond Rod is a celebration of mastery in Fish It. It’s not just about owning a powerful tool – it’s about completing one of the game’s most intricate and demanding quests. From secret fish hunts to perfect throw endurance tests, every step in this journey challenges your fishing skill and patience.
Whether you’re a completionist or just want the best gear available, the Diamond Rod quest delivers an endgame experience worthy of your time – and the reward earns a permanent spot in your Fish It backpack.
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