GEM (Girls' Entertainment Mixture) is a Japanese idol group under the avex sub-label IDOL Street. The theme of the group is Gemstones. As of 2017, the groups are split into sub-units known as LUNA and SOL. The group was formed in January 2013 and is set to disband Spring 2018.
- Kanazawa Yuuki (金澤有希;Leader)
- Ito Chisami (伊藤千咲美)
- Morioka Yuu (森岡悠)
- Minamiguchi Nana (南口奈々)
- Nishida Hirari (西田ひらり)
- Kumashiro Jurin (熊代珠琳)
- Oguri Kako (小栗かこ)
- Murakami Rana (村上来渚; indefinte Hiatus)
- Takeda Maya (武田舞彩;Hiatus)
- Iyama Maho (伊山摩穂; indefinte Hiatus))
- Hirano Sara (平野沙羅)
- Ozeki Nagi (Graduated April 7, 2013)
- Sakamoto Hazuki (Now in Wa-Suta)
- Asakawa Nana (Now in SUPER☆GiRLS)
- Uchimura Risa (Now in SUPER☆GiRLS)
- Noguchi Monami (野口みなみ) (Left in July 2016)
- [2016.03.23] Girls Entertainment Mixture
- [2013.07.26] Speed up / Do it Do it
- [2014.01.01] We're GEM!
- [2014.06.04] Do You Believe?
- [2014.12.17] Star Shine Story
- [2015.09.30] Baby, Love me!
- [2016.03.23] Fine! ~fly for the future~
- [2016.07.20] Spotlight
- [2017.02.15] Sugar Baby
- [2015.06.28] No Girls No Fun
- [2015.06.28] You You You
- [2015.06.28] Delightful Days
- [2017.08.16] Kimi to Boku. / Saikyou Summer!!
- [2015.11.25] GEM Live Mixture 2015 ~2nd Anniversary~