Ruby Gemstone Fish It Guide, Location & Where to Get!

Ruby Mutated Gemstone has become one of the most wanted items in Fish It Roblox since the latest update went live. This item is not only rare, but also a key requirement to complete the Diamond Rod quest.

Many players already have a normal Ruby but still cannot progress, simply because the quest specifically requires the mutated version. To avoid wasting time and resources, this guide explains where to fish Ruby correctly, how mutation works, and the best ways to increase your chances of getting Ruby Mutated Gemstone faster. Also check out our Fish It Codes for more rewards!

What Is Ruby Mutated Gemstone in Fish It?

Ruby Mutated Gemstone is a Ruby gemstone that has gained a mutation status. While it looks similar to a normal Ruby, its function is completely different.

• Still categorized as a Gemstone
• Has the Mutated status
• Required for Diamond Research Quest
• Can be exchanged with Diamond Researcher (Larry)

If the Ruby does not show the Mutated status, the NPC will not accept it, even if everything else looks correct.

Where to Fish Ruby Gemstone

Ruby can only be obtained through fishing, and location matters a lot.

Important Notes

• Ruby is a Legendary item
• Only available in Ocean areas
• Cannot be found in rivers or land fishing spots

The longer you fish in the Ocean, the higher your chances of pulling Gemstones. Many players recommend fishing in popular Ocean spots, as these areas are often used for farming rare items.

How to Get Ruby Mutated Gemstone Faster

Catching Ruby alone is not enough. You need to focus on mutation mechanics to get the correct version.

1. Use Mutation Potion

This is the most reliable and consistent method.

Mutation Potion increases the chance that your catch becomes mutated.

Tips for best results

• Activate the potion before fishing
• Do not change maps while the potion is active
• Fish continuously until the potion duration ends

2. Increase Luck and Enchant Stats

Mutation does not fully depend on luck, but higher luck speeds up the process by increasing rare catches.

Recommended setup

• Use a fishing rod with high Luck stats
• Activate Luck events if available
• Combine with helpful enchants if you have them

3. Do Not Exchange Normal Ruby

This is a common mistake that slows progress.

Before trading:

• Make sure the item name includes Mutated
• Do not rush to the NPC without checking
• Normal Ruby has no quest value

Once you get Ruby Mutated, keep it safe in your inventory and head straight to Larry.

How to Submit Ruby Mutated to the NPC

After obtaining Ruby Mutated Gemstone, follow these steps:

1. Return to the Mutation Cellar
2. Talk to Diamond Researcher (Larry)
3. Choose the exchange option
4. Submit Ruby Mutated Gemstone

If the item is correct, the quest will instantly complete with no additional requirements.

Ruby Mutated Gemstone may look simple, but it often blocks Diamond Rod progress because many players do not realize the difference between normal and mutated Ruby. By fishing only in the Ocean, using Mutation Potion, and understanding how mutation works, you can complete this quest much more efficiently. If you are aiming for Diamond Rod or advanced quests in Fish It, securing Ruby Mutated Gemstone early will save you a lot of frustration and wasted effort. This step is essential before moving on to the next stage of progression.