Originally owned by Panembahan Adam, the Sultan of Banjarmasin, in what is now southern Kalimantan, Borneo. It formed part of the royal regalia, a collection of treasured objects that symbolised both the power of the sultan and the traditions of the sultanate. After Panembahan Adam’s death, a dispute over succession arose, prompting intervention by the Dutch colonial authorities. In 1859, Dutch forces occupied Banjarmasin, dismantled the sultanate, and incorporated the region into their empire. As part of the spoils of war, the diamond—still in its rough form—was taken to the Netherlands, where it was cut into a rectangular shape, altering its original form and severing its connection to its cultural heritage.