Joyless Jewel

The Joyless Jewel is a treasure in Pikmin 2 that actually is a plastic silver ring with a green heart in the center. It is found in the 7th sublevel of Hole of Heroes where it is held by a Ranging Bloyster. It is the 116th treasure on the List of Pikmin 2 treasures in the NTSC version and the 115th in the PAL version.

Captain Olimar's Journal
"We found this treasure in a cave teeming with merciless creatures. But we did find this gorgeous jewel, so it wasn't all bad. Update: It turns out that it's just plastic. So it was all bad after all."

Sales Pitch
"Those who view this gem's green twinkle become filled with great hopes and expectations. However, it rewards neither. This artistic sham only provides short-lived happiness."