Casturi (Kasturi) is often called the holy grail of mangoes—and for good reason. Native to Borneo, this rare fruit isn’t your typical mango; many say it’s in a category of its own. Small in size but enormous in flavor, Casturi has dramatic black-purple skin and deep orange flesh bursting with rich, complex, almost intoxicating aroma and taste. Packed with vitamins and prized as a tropical superfood, it comes from a different Mangifera species than common mangoes, making it a true collector’s fruit. Exceptionally resistant to anthracnose and nearly impossible to forget once tasted. Casturi is the kind of fruit that turns curiosity into obsession.