Getting rich?

Deidre, Dennis and Gerald would rather be lazy than tired. But they don't want to pass up an opportunity to get rich either. When all the miners had left the sugar mine, the three secretly took a look, because they had heard that large diamonds were found. Bags full of glittering chunks the three took with them. Too bad for Deidre, Dennis and Gerald: the chunks are at most good to put in coffee or tea... Sometimes it is wise to inform yourself well before you start something!