Alternative Titles Synonyms: Country of Jewels Japanese: 宝石の国 Information Type: TV Episodes: 12 Status: Finished Airing Aired: Oct 7, 2017 to Dec 23, 2017 Premiered: Fall 2017 Broadcast: Saturdays at 21:30 (JST) Producers: Mainichi Broadcasting System, Kodansha, Movic, AT-X, TOHO animation, Tokyo MX, Q-Tec, Kyoraku Industrial Holdings, BS11 Licensors: Sentai Filmworks Studios: Orange Source: Manga Theme: Anthropomorphic Demographic: Seinen Duration: 24 min. per ep. Rating: PG-13 - Teens 13 or older Statistics Score: 8.391 (scored by 198,604 users) 1 indicates a . Ranked: #1912 2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded. Popularity: #487 Members: 463,498 Favorites: 13,617 Available AtResources | Featured ArticlesIn Numbers: The Best Anime of the Decade What's the #1 anime of the 2010s? Which year was the best? What studio had the most hits? We have the answers to all these questions and more! by Shymander 626,718 views |