Exodus 28:15-19

“You shall make a breastpiece of judgment, the work of a skilled embroiderer; like the work of the ephod you shall make it: of gold, of violet, purple, and scarlet material, and fine twisted linen you shall make it.

It shall be square and folded double, a span in length and a span in width.

And you shall mount on it four rows of stones; the first row shall be a row of ruby, topaz, and emerald;

and the second row a turquoise, a sapphire, and a diamond;

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