Aquamarine
Aquamarine may refer to:

Aquamarine (color), a shade between green and blue
Aquamarine (gemstone),  a type of pale-blue to light-green berylAquamarine may also refer to:

Arts and media
Aquamarine (novel), a 2001 novel by Alice Hoffman
Aquamarine (film), a 2006 film based on the book by Alice Hoffman
"Aqua Marine" (song), by Santana from the album Dance of the Rainbow Serpent
"Aquamarine" (Drugstore song), from the album Anatomy
Aquamarine (album), by Ash Walker
Aquamarine, a character on the Cartoon Network show Steven Universe
Aquamarine (video game), a 2022 adventure game by Moebial Studios
Aquamarine "Aqua" Hoshino, the male protagonist in manga and anime series Oshi no Ko

Other uses
Aquamarine (window decorator), a software application
USS Aquamarine (PYc-7), a patrol vessel of the United States Navy, named for the stone
Aqua Marine, a private housing estate in Cheung Sha Wan, Hong Kong
One of the former names of the motor vessel Ocean Star Pacific

See also
Aquamarine Power, a wave energy company that developed the Oyster wave energy converter
Aquamarine Fukushima, an aquarium in Fukushima
Aquamarina, a fungal genus
Aquimarina, a bacterial genus