The transforming potential of iconic beauty is vital to a full understanding and appreciation of the writer's works and religious philosophy. This study therefore aims to develop and affirm the theological and artistic importance of the concept of transformation through Dostoevsky's characterisation and narrative in the post-Siberian works by examining the role and function of the spiritual beauty manifested through icons. The research provides the basis for a deeper understanding of the function of transformative beauty in Dostoevsky's works during an important period of his creative output and contributes to a reviving interest in the conceptualisation of beauty within a theological and literary framework.Works incorporated in the analysis include A Gentle Creature, Crime and Punishment, The Idiot, The Devils and The Brothers Karamazov.