Stone (Luigi's Mansion)

Stones, also called Jewels, are valuable collectibles found in the game Luigi's Mansion. There are three different colors of Stones, each with their own name: Blue Sapphires (500,000G each), Green Emeralds (800,000G), and Red Rubies (1,000,000G). Ten of each color can be found in the Mansion, totaling 23,000,000G. To find them all, Luigi has to water all the plants he can find, examine a variety of objects such as buckets, gutters and gold chandeliers, catch Speedy Spirits, and light up all the rooms in the mansion except for the third and Basement floor hallways.

Trivia

 * Luigi is also able to find stones in the game Mario is Missing!. They are stolen from the Obelisk Monument in Buenos Aires and the Great Wall of China in Beijing by Koopa Troopas, and Luigi has to return them to the monuments.
 * When Luigi obtains a Stone, the sprite of Luigi on the Game Boy Horror resembles Luigi's sprite from Super Mario All-Stars: Super Mario Bros.