It was said that whichever land possessed this jewel would never encounter any calamities such as droughts, floods, earthquakes or famines, and would always be full of prosperity and plenitude.

Since there are about 3,700 grains of rice in an ounce, the Syamantaka jewel was producing approximately 170 pounds (77 kg) of gold every day.

[6] One day, Satrajita, a Yadava nobleman, and a devotee of Surya, the solar deity, was walking along the sea shore, praying ardently, when the god himself appeared before him.

For this, the sun god took the Syamantaka jewel off his neck, and Satrajita saw him possessing a dwarfish stature, with a body like burnished copper, and with slightly reddish eyes.

From there, he followed the tracks of a bear, which finally led him to the entrance of Jambavan's cave, where the latter's children were playing with the priceless jewel.

Jambavan, who was hot-headed, but pious by nature, returned the jewel to Krishna, and also granted him the hand of his daughter in marriage, called Jambavati.

He washed his feet resembling fresh lotuses with auspicious water; worshipped the descendant of Yadu with a (respectful offering called) madhuparka; properly honoured him with (i.e. by giving him) divine garments and ornaments; he gave him, of unlimited lustre, as his wife, his daughter endowed with beauty, named Jāmbavatī, a gem among girls.

Krishna, the delighted killer of his enemies, having married the girl there, affectionately gave that Jāmbavat final beatitude.

All of Krishna's friends and family members became extremely sorrowful and began regularly worshipping Goddess Lakshmi to assure the deity's safe return.

He went back to his home, and there he decided to offer Krishna not only the jewel, but also his daughter, Satyabhama, so as to atone for the offense he had committed against the lord's lotus feet.

Kritavarma, Akrura, and Shatadhanva, who had wished to wed Satyabhama themselves, conspired to make use of Krishna's absence from Dvaraka as an opportunity to steal the gem as revenge.

Krishna and Balarama immediately started for Dvaraka to avenge Satrajita's death, hearing of which Shatadhanva fled on his horse, placing the jewel with Akrura.

After three years had passed, Vabhru, Ugrasena, and the other Yadavas managed to convince Baladeva that Krishna had indeed not stolen the jewel.

Having thus killed the demon Śaṅkhacūḍa and taken away his shining jewel, Lord Kṛṣṇa gave it to His elder brother with great satisfaction as the gopīs watched.

However, some speculate that the legendary Syamantaka Mani might be in fact the famous Koh-i-Noor diamond, which was known to have been in the possession of the Mughal emperors of India, followed by the Sikh Empire, and currently one of the Crown Jewels of the United Kingdom.