Maybe a bit of a stretch, but what about Jacinthe/Jacintha/Jacinta? I always found her super pretty. I think you could combine anything with the “jay” and K sounds too. Like [name_u]Jacey[/name_u] [name_f]Kate[/name_f], [name_f]Jada[/name_f] Claire/Jade [name_u]Camille[/name_u], [name_u]Jael[/name_u] [name_f]Clementine[/name_f], [name_u]Jamie[/name_u] [name_f]Katherine[/name_f], [name_f]Jalia[/name_f] [name_f]Corinne[/name_f], [name_f]Jane[/name_f] [name_f]Kylie[/name_f], [name_f]Janina[/name_f] [name_u]Capri[/name_u], [name_f]Jasmine[/name_f] [name_u]Kelly[/name_u], etc.
Good luck!