Exodus 39:9

They worked the onyx stones, enclosed in settings of gold, engraved with the engravings of a signet, according to the names of the children of Israel.

He put them on the shoulder straps of the ephod, to be stones of memorial for the children of Israel, as the LORD commanded Moses.

He made the breastplate, the work of a skillful workman, like the work of the ephod: of gold, of blue, purple, scarlet, and fine twined linen.

They set in it four rows of stones. A row of ruby, topaz, and beryl was the first row;

and the second row, a turquoise, a sapphire, and an emerald;

and the third row, a jacinth, an agate, and an amethyst;