From the ocean that was being churned emerged a highly refulgent, extremely bright, most excellent gem having the brilliance of the Sun. It was called Kaustubha. With its brilliance, it illuminated the three worlds. Keeping the Cintāmaṇi (a miraculous stone) in front, they saw the Kaustubha brightening the worlds. All those Suras gave the Kaustubha to Viṣṇu. Suras and Asuras of enhanced strength lustily roared again and began to churn the ocean keeping Cintāmaṇi in the middle.
— Skanda Purana, Chapter 11, Verses 51 - 53
