Exodus 28:18

15 And make a priest's bag for giving decisions, designed like the ephod, made of gold and blue and purple and red and the best linen.

16 It is to be square, folded in two, a hand-stretch long and a hand-stretch wide.

17 And on it you are to put four lines of jewels; the first line is to be a cornelian, a chrysolite, and an emerald;

18 The second, a ruby, a sapphire, and an onyx;

19 The third, a jacinth, an agate, and an amethyst;

20 The fourth, a topaz, a beryl, and a jasper; they are to be fixed in twisted frames of gold.

21 The jewels are to be twelve in number, for the names of the children of Israel; every jewel having the name of one of the twelve tribes cut on it as on a stamp.