Matthew 7:6
Give not that which is holy to the dogs, neither cast your pearls before the swine, lest they may trample them under their feet, and having turned round tear you to pieces.
Matthew 13:45-46
Again, the kingdom of the heavens is like unto a man seeking beautiful pearls:
1 Timothy 2:9
likewise that the women adorn themselves in comely apparel, with modesty and prudence; not with braided hair, and gold or pearls or costly garments;
Revelation 17:4
And the woman was clothed in purple and scarlet, and gilded with gold and precious stones and pearls, having a golden cup in her hand full of abominations and the impurities of her fornication:
Revelation 18:12
their merchandise of gold, and of silver, and of precious stones, and of pearls, and of fine linen; and of purple, and of silk, and of scarlet, and all thyine wood, and every vessel of ivory, and every vessel of most valuable wood, and of brass, and of iron, and of marble;
Revelation 21:21
The twelve gates are twelve pearls; each one of the gates was of one pearl. And the street of the city is pure gold, like transparent glass.