
DIA [Do It Amazing/Diamond] (다이아)
- Debut (Y-M-D): 15-09-14
- Label: N/A
- Music Videos:
- Albums:
- Korean: Do It Amazing [Full Album], My Friend’s Boyfriend [Digital Single], Happy Ending [Mini Album], Spell [Mini Album], YOLO [Full Album], Love Generation [Mini Album], Present [Repackaged Mini Album], Summer Ade [Mini Album], Newtro [Mini Album], Flower 4 Seasons [Mini Album], Rooting For You [Digital Single]
- Subunits:
- Fan Name: AID
- Logo:

Members:

- Stage Name (Hangul): Eunice (유니스)
- Position: Vocal, Dance
- Real Name: Hoo Sooyeon (허수연)
- Birthday (Y-M-D): 91-09-02
- Nationality: Korean
- Height: 160cm
- Blood Type: A
- Subunit: BCHCS
- Formerly in: Jewelry as* Sooyeon

- Stage Name (Hangul): Jueun (주은)
- Position: Vocal
- Real Name: Lee Jooeun (이주은)
- Birthday (Y-M-D): 95-06-07
- Nationality: Korean
- Height: 163cm
- Blood Type: A
- Subunit: L.U.B

- Stage Name (Hangul): Huihyeon (희현)
- Former Stage Name: Cathy (캐시)
- Position: Leader, Rap, Dance
- Real Name: Ki Heehyun (기희현)
- Birthday (Y-M-D): 95-06-16
- Nationality: Korean
- Height: 167cm
- Blood Type: O
- Subunit: BCHCS



- Stage Name (Hangul): Eunchae (은채)
- Position: Vocal, Dance, Rap
- Real Name: Kwon Chaewon (권채원)
- Birthday (Y-M-D): 99-05-26
- Nationality: Korean
- Height: 157cm
- Blood Type: A
- Subunit: L.U.B
Former Members:

- From: 2015-2016
- Stage Name (Hangul): Seunghee (승희)
- Position: Leader, Vocal
- Real Name: Jo Seunghee (조승희)
- Birthday (Y-M-D): 91-06-03
- Nationality: Korean
- Height: 166cm
- Blood Type: O
- Formerly in: F-VE Dolls, Co-Ed School
- SNS: ig – seunghee91_63

- From: 2015-2018
- Stage Name (Hangul): Eunjin (은진)
- Position: Dance, Rap, Vocal
- Real Name: Ahn Eunjin (안은진)
- Birthday (Y-M-D): 97-08-31
- Nationality: Korean
- Height: 170cm
- Blood Type: A
- Subunit: L.U.B
- SNS: ig – eun_jin3851


- From: April 2017 – Jan 2022
- Hiatus: 2020 – 2022
- Stage Name (Hangul): Somyi (솜이)
- Position: Dance, Vocal, Rap, Maknae
- Real Name: Ahn Somyi (안솜이)
- Birthday (Y-M-D): 00-01-26
- Nationality: Korean
- Height: 167cm
- Blood Type: A
- Subunit: BCHCS
- SNS: ig – somsom_o0o
Social Media + :
Member:
- Eunice: ig – e.heomer | YouTube
- Jueun: ig – jusilver_67
- Huihyeon: ig – khh1995_a
- Yebin: ig – yeb1n_100 | SoundCloud
- Chaeyeon: ig – j_chaeyeoni
- Eunchae: ig – silver_chae_526