Jewel is one of Doctor Finkelstein's creations. He made her with half of his brain, in hopes of "having conversations worth having." Jewel was meant to be a replacement for Sally because she was too "restless."
She is nearly a carbon copy of the Doctor, given the same head and mouth structure as him. She appears more feminine and, unlike Finklestein, has the ability to walk and has blonde hair.
Jewel makes a few appearances incomplete while the Doctor searches for a new head to make her with. She can later be seen wrapped entirely from head to toe while Sally
attempts to escape, where Finklestein pulls out half of his brain and sets it in Jewel's head, kissing it until the hatch closes on his lips. She makes her last appearance at the ending of the movie, where she is finally completed and wheels the Doctor into Town, watching him and blinking. Her appearance shocks Jack Skellington.
- While Doctor Finkelstein is working on Jewel, it is revealed that she has the same body structure and stitches as Sally.
- Jewel is nowhere to be seen in the sequel video game Oogie's Revenge and Kingdom Hearts.
- She makes an appearance as a figure in the video game, Disney Crossy Road.