Luigi’s Mansion 3 Hidden Gem Locations: Where to Find All Hidden Gems

Seventh Floor Gems – Garden Suites

1. This silver gem can be found in the Ivy Bathroom (the one with the big watermelon in it). Use the dark light in front of the toilet to find a hidden grate and have Gooigi go down into it. Use the dark light again on the pipe down there to fix the water flow. Now, use Luigi upstairs and blow wind at the tub to turn the faucet to make the water flow. The water will then go down to the bottom and the flower will sprout. Flash it and the gem will pop out.
2. This hidden red gem can be found in the Blooming Suite room. If you look in the bottom right corner, there is a small nightstand beside the bed. Pull it with your plunger to reveal a grate that Gooigi can go into. Gooigi will pop up on the top of the bed and you just need to use the strobe light on the plant and a gem will pop out.
3. This blue gem can be found at the tippy-top of the big tree. Head to the left and use your vacuum to bring a big leaf towards you for you to walk on. Follow the path near the windows and you’ll run into this gem along with a couple of coins.
4. This green gem is found in the Mushroom Suite. Suck up the curtains attached to the bed and walk behind the couch to enter an “underground” area. You’ll see a pipe down there that Gooigi can go into and once he does, he’ll pop up in front of a glowing flower. Use the strobe light on it to find a gem.
5. This hidden purple gem can be found in the Blooming Bathroom. Have Gooigi fall into the grate in front of the toilet and then you’ll see some pipes at the end of the underground section that he falls into. Don’t go into those first two pipes you see, but instead, suck up those pink flowers on the wall to reveal the third pipe. Go in there to get the gem in the bathtub.
6. This yellow gem can be found in the elevator hall as soon as you get on the seventh floor. There will be three paintings on the wall. Use your dark light on the third painting from the left to reveal this gem.

Eighth Floor Gems – Paranormal Productions

1. To find this silver gem, go into the New York-looking sound stage. Go near the bicycle on the right side of the set and then press the triggers together (ZL+ZR) to make a ghost appear. Simply defeat it to find a gem.
2. This gem can be found in the Studio Entrance. Pick up and throw the plant that is in the bottom left corner of the room and then use your vacuum to blow the carpet to reveal a red gem.
3. This blue gem is frozen in a piece of ice that you can pick up in the main room where the director is. Simply carry it to the soundstage with the burning building and you’ll be able to melt it.
4. This green gem can be found in the sound stage with the big spider. Use Gooigi to go into the glass bottle to retrieve this gem.
5. This hidden purple gem is found in the elevator hall in the first section of the eighth floor. Simply aim your vacuum at the helicopter blades and a gem will appear.
6. This yellow gem is found in the Studio Entrance room after the long hallway of posters. Pull the film reel to the right of the door and the gem will pop out in the back of the room. Use Gooigi to go through the barricade to grab it.

Ninth Floor Gems – Unnatural History Museum

1. This silver one is found by the egg statue in the front of the hall. Just break the glass case with a piece of dinosaur that you can pick up off the ground in the main exhibit hall after the T-Rex fight.
2. This red gem is found in the Elevator Hall by the front desk. Spin the desk chair around with your vacuum to make a gem appear.
3. This blue gem is also found in the top left corner of the Elevator Hall. On one of the pillars near the bone displays, you’ll see a flashing green light. Use the strobe light on it and a safe will appear. Use your light on it and a gem will pop out as well as some cash.
4. This green gem can be found right outside of the elevator by throwing a piece of bone at the pterodactyl that’s hanging above.
5. This purple gem can be found in the bottom left corner, just left of the main front desk. Destroy the glass case and then use the dark light to reveal a gem.
6. This yellow gem can be found in a glass container by the entrance to the main exhibit room. You can break it open with one of the pieces of bone found where you fight the T-Rex/Caveman boss.

Tenth Floor Gems – Tomb Suites

1. In the central chamber, go to the statue on the right side near the east exit. Use your plunger on the statue and then a couple of other smaller ones will appear. Keep using your plunger until you find the last one and then a gem ghost will appear. Defeat it to get this silver gem.
2. This hidden red gem is found in the Sandy Grand Hall, right by the entrance to the room with the big pyramid in it. There’s a gold snake statue in the corner; pull the gold ball with Luigi and then use Gooigi to suck up the gem from the snake’s mouth.
3. In the Jewel Chamber, you’ll come across a puzzle in which you have to fit in five different shapes into the wall while poison gas is filling the room. Once you complete this, you’ll find a blue cube. Take it back into the previous room and shoot it in the space in the wall. The blue hidden gem will reveal itself afterward.
4. This green gem can be found in the Scale Chamber. Look for a grate that Gooigi can go through in the south-west corner. Fall through it and then open the chest to find a gem.
5. This purple gem is found in the big sandy room where the pyramid is. Go walk near the left side of the pyramid and you’ll see a big mound of sand. Suck it up to find a gem.
6. This yellow can be found in the area where the giant pyramid is. To the right of it, there will a big stone snake underneath some sand. Use the dark light on the missing parts of the snake to reveal a gem in the snake’s mouth.

Eleventh Floor Gems – Twisted Suites

1. West of the Bladed Bedroom is the Suit Bathroom. Go in here and interact with all of the objects in the room until you find all of the hidden cards. Once you find them all, a silver gem will pop out of the box on the ceiling.
2. This red gem can be found in the Bladed Bedroom. Use the dark light on the left side of the wall in the Elevator Hall after tearing off the fake wallpaper to gain access to this room. Then, use your vacuum on the circular magic panel to make swords appear. The gem will pop out afterward.
3. This blue gem is found in the Trainer’s Bedroom and is obtained by breaking one of the pink piggy banks laying about.
4. This green gem can be found in the Lounge room. Next to the vending machine, you’ll see a spot on the wall that can be pulled off with the plunger. Pull it and then shoot the green light with the strobe bulb. The gem can now be picked up off the wall on the left side of the room but you’ll need Gooigi or Luigi to be standing over there before the time runs out on the counter.
5. This purple gem is found in the Hall of the Twisted Suites. There’s a statue here of three ghost magicians and there’s also a big purple hat on the ground. Put on the hat and then walk it over to the magician statue without a hat and then jump in the air right in front of it and the hat will pop on the statue.
6. This yellow gem is found in the Mirror Bathroom. Simply use the dark light on the south end of the room and a gem will appear.