Belli

Belli is the main currency of Gravid Diaries. These are special coins that contain an extremely light Aerocite core covered in a thin gold plating. These coins can be stored in a Shaman's Tattoo and brought out at any time.

Appearance
The Belli coin is a few centimeters larger than an American Nickel, and just as thick. The "Heads" side has a strange insignia with the denomination in the center (1, 10, 100, or 1000), while the "Tails side has the stamped image of two pregnant bellies/torsos (one male and & female) touching.

Trivia

 * The term Belli came directly from One Piece. The English translation called them Berries.
 * Most 1000 Belli coins are used by banks, rarely do citizens use them unless making a huge purchase like a house.