Application Right of Khiyar as a Legal Protection Mechanism in the Ecosystem of Online Diamond Trading: A Perspective from Islamic Law and Positive Law. Journal of Islamic Economic Studies, [S. l.], v. 2, n. 2, p. 1–18, 2026. DOI: 10.66274/. Disponível em: https://journal.hamfara.com/hamfara/article/view/71. Acesso em: 16 jun. 2026.