Lavi is a Pearl from the Off-Colors, who is often fused with Button to form Rhodonite.
Appearance
Her color scheme shows a lavender complexation, her eyes were a pinker complexion and curly hair similar to Steven Universe's hair.
Her outfit almost mirrors Yellow Pearl yet with a skirt instead of a body suit, purple gloves, a flair that went around her shoulders and upper chest. Her gemstone is on her chest.
Personality
In her appearances she is often shown as very cautious, and cowardly to many things around her, often relying on her friend Button for support. She often questions things, and doesn't show that much trust out of fear. Later appearance had shown she is willing to try to overcome her fear somewhat, namely in her encounter with Leviathan.
Although commonly scared, she is shown to be highly protective over those she cares about, mostly shown as Rhodonite.
History
She, alongside Button, were once owned by a Morganite on Homeworld, but as they liked fusing together they were quickly replaced and forced to go into hiding for over six thousand years.
Season 6
Lavi appears purely by accident when she, Button, Ruby and Sapphire were dropped into Discord's dimension, being forced to travel it to find their way back.
She briefly appears again during the three-part finale, split apart as she and everyone else was held captive by White Diamond.
My Little Universe II
She reappears after Rhodonite was forced to split by Leviathan's henchmen, Lavi going into a state of shock and unable to move until Button had to pick her up and move her away. Later on that night however, Lavi joined Button in returning to Leviathan in order to save Yellow Pearl, with the belief she will never be frightened again after facing her head on. During the escape, it was her who distracted some of Leviathan's henchmen to help them all escape.