Jewelry resembles a large purple clam, partially submerged in the sand. The clam is open, and inside is an extremely large pearl, which has two glass doors that are the entrance to the store. Above the doors, the name of the store is displayed in gold and there is a little crown above the "J" in the store's name.
Inside the building, the walls are purple and the floor is made of brown-colored wood. There are multiple glass-covered display cases built into the walls, where jewelry is displayed. There are long green counters that double as display cases for jewelry. There is also a framed picture of a ring inside the building.
Role in the episode
When SpongeBob mistakes Stickyfins for his driving instructor, the latter forces him to drive him to various places he can rob, one of which is this jewelry store.
He tells SpongeBob that "distracted drivers are dangerous" as a means to distract the store owner, saying that it's "abstract thinking." While SpongeBob distracts the owner, Stickyfins steals a large amount of jewelry. He dumps it into the Boatmobile, and he and SpongeBob proceed to drive off.
Shortly after, the store owner realizes that he's been robbed, and calls for help. Police drive after SpongeBob and Stickyfins, while Mrs. Puff and Dorsal Dan stop in front of the store. Puff jokes about how she's shopped there before and how she's been robbed, before she and Dorsal Dan laugh. After a short conversation, they continue driving.