Question: where to find all the gems in luigi mansion dark moon?
Answer: Amethyst 2 - Yard (Available in A-1) ... 
Amethyst 3 - Parlor (Available in A-2) ... 
Amethyst 4 - Studio (Available in A-2) ... 
Amethyst 5 - Entrance (Available in A-3) ... 
Amethyst 6 - Dining Room (Available in A-3) ... 
Amethyst 7 - Kitchen (Available in A-3) ... 
Amethyst 8 - Foyer (Available in A-4) ... 
Amethyst 9 - Patio (Available in A-4)