Where to Find Diamond Island | Diamond Island Location

This is a guide to finding Diamond Island in the Great Sea area of Paper Mario: The Origami King. Learn where to dive to find Diamond Island, and how to find all the clues showing the location of Diamond Island.

Diamond Island Location

1.) The red X's represent Treasure locations
2.) The Princess Peach's location will change. It is represented by the pink ship.

You can find Diamond Island's location in the mid-upper-right of square D3, at the point directly in the middle of Full Moon (Crescent) Island, Heart Island, Club Island, and Spade Island, by diving below the surface with the D-Pad.

Diamond Island will not appear on your Sea Chart until you've already been there, so you'll have to find the exact spot by looking at your Sea Chart and judging its position.

How to Find Diamond Island

To reach Diamond Island, there are three requirements:

1. Clear the fog in the Great Sea with the fan on Bonehead Island.
2. Find the Diamond Key
3. Dive underwater at the spot where Diamond Island is submerged

Although clues to the location of Diamond Island are found on Heart Island, Club Island, and Spade Island, there is no requirement to get any of the clues. Simply by using the submarine at the correct location, you can reach Diamond Island and skip the other islands entirely.

Step 1: Clear the Fog in the Great Sea

The first location you'll need to visit is Bonehead Island. Before you've visited this island, the majority of the Great Sea will be inaccessible due to a looming fog. Once you've found the Winged Toad Statue on this island, a giant fan will appear in the ocean and blow away all the fog, making the entirety of the ocean accessible to you.

Bonehead Island Walkthrough

Step 2: Find the Diamond Key

Although you can submerge to the location of Diamond Island after getting rid of the fog, you won't be able to open the lock until you find the Diamond Key. You'll need to visit Crescent Island, then Mushroom Island to obtain it.

Crescent Island (Full Moon Island)

On Crescent Island, you'll need to fish for a Sidestepper from the pier. After catching it, you'll be able to use the Magic Circle to use the Earth Vellumental, changing the island to Full Moon Island and revealing a chest with the Mushroom Handle.

Crescent Island Walkthrough

Mushroom Island

Mushroom Island is home to the Origami Craftsman, and temporarily Luigi. Use the Mushroom Handle to open the door to the house, then go through to the other side to find Luigi, who will give you the Diamond Key.

Before you can leave the island, you will need to find the Origami Craftsman in the basement. Go down the stairs in the patio north of Luigi, then in the basement, hit the bookshelf on the left with the Hammer. Jump on Luigi to get the book on top, then use the Magic Circle to free the Origami Craftsman. Leave the island and you're ready to head to Diamond Island!

Mushroom Island Walkthrough

Step 3: Dive Underwater at the Right Spot

Use the Map above to find the location of Diamond Island. Press the D-pad to dive at that spot, and you'll find Diamond Island underwater. Use the Diamond Key to open the lock, and you'll be able to continue inside to Diamond Island!

Although you can start one of the Trials on Diamond Island right away, you'll need the Ice Vellumental to reach two of them, so it's best to go ahead and head into Ice Vellumental Mountain right away once inside.

Ice Vellumental Mountain Walkthrough

Optional: Find Clues on Heart, Club, and Spade Island

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Three other islands are located nearby, each of which has a Winged Toad Statue with a clue to the location of Diamond Island. All together, the clues basically just show that the Diamond Island is in the center of the four islands.

If you want to progress the game in the intended way, you might want to go pick up these clues before proceeding to Diamond Island. There's plenty of treasures and collectibles to be had on each island, so either way, you'll want to swing by sooner or later.

Related Links

Story Walkthrough

Main Story Walkthrough

Prologue
Peach's Castle
Red Streamer
Whispering Woods	Toad Town
Graffiti Underground	Picnic Road
Overlook Mountain	Earth Vellumental Temple
Overlook Tower	-
Blue Streamer
Autumn Mountain	Chestnut Valley
Water Vellumental Shrine	Eddy River
Shogun Studios	Ninja Attraction
Big Sho' Theater	-
Yellow Streamer
Sweetpaper Valley	The Princess Peach
Breezy Tunnel	Shroom City (Snif City)
Scorching Sandpaper Desert	Fire Vellumental Cave
Scorching Sandpaper West	Scorching Sandpaper Far West
Scorching Sandpaper East	Scorching Sandpaper Far East
Scorching Sandpaper Minor	Temple of Shrooms
Purple Streamer
The Great Sea	Bonehead Island
Crescent/Full Moon Island	Mushroom Island
Heart Island	Spade Island
Club Island	Ice Vellumental Mountain
Diamond Island	Sea Tower
Scuffle Island	? Island (Question Mark Island)
Hammer Island	-
Green Streamer
Shangri-Spa	Spring of Jungle Mist
Spring of Rainbows	Bowser's Castle
Finale
Hotfoot Crater	Origami Castle

Other Story Guides