'Ruri's Jewels') is a Japanese manga series written and illustrated by Keiichirō Shibuya.

It has been serialized in Enterbrain's seinen manga magazine Harta since August 2019, with its chapters collected into five tankōbon volumes as of September 2024.

An anime television series adaptation produced by Studio Bind is set to premiere in 2025.

Written and illustrated by Keiichirō Shibuya, Ruri no Hōseki began serialization in Enterbrain's Harta magazine on August 10, 2019.

It will be produced by Studio Bind and directed by Shingo Fujii, with scripts written by Michiko Yokote, characters designed by Mayu Fujii, and music composed by Daisuke Achiwa and Kazuki Yanagawa.