Pearls in Religion
According to Rebbenu Bachya, the word Yahalom in the verse Exodus 28:18 means "Pearl" and was the stone on the Ephod representing the tribe of Zebulun.
In a Christian New Testament parable, Jesus compared the Kingdom of Heaven to a Pearl of Great Price. Additionally, the twelve gates of heaven are reportedly each made of a single pearl Revelation 21:21, that is, the Pearly Gates.
In Islam, the Quran often mentions that dwellers of paradise will be adorned with pearls:
22:23 God will admit those who believe and work righteous deeds, to Gardens beneath which rivers flow: they shall be adorned therein with bracelets of gold and pearls; and their garments there will be of silk.
35:33 Gardens of Eternity will they enter: therein will they be adorned with bracelets of gold and pearls; and their garments there will be of silk.
The Vedic tradition describes the sacred Nine Pearls which were first documented in the Garuda Purana, one of the books of Hindu holy text Atharvaveda.