Matthew 7:6
Give not that which is holy to dogs, neither cast your pearls before swine, lest they trample them under their feet, and turning, rend you.
Matthew 13:45-46
Again, the kingdom of heaven is like a merchant seeking goodly pearls:
1 Timothy 2:9
Likewise that women adorn themselves in decent apparel, with modesty and sobriety, not with curled hair, or gold, or pearls, or costly raiment,
Revelation 17:4
And the woman was arrayed in purple and scarlet, and decked with gold and precious stone and pearls, having in her hand a golden cup, full of abominations and filthiness of her fornification:
Revelation 18:12
and silver, and precious stone, and pearl, and fine linen, and purple, and silk, and scarlet, and all sorts of thyine wood, and all sorts of vessels of ivory, and all sorts of vessels of most precious wood, and of brass, and iron, and marble;
Revelation 21:21
And the twelve gates were twelve pearls, each of the gates was of one pearl: and the street of the city was pure gold, transparent as glass.