Exodus 36:15

¹³and they made the two emerald stones clasped together and set in gold, graven and cut after the cutting of a seal with the names of the children of Israel;

¹⁴and he put them on the shoulder pieces of the ephod, as stones of memorial of the children of Israel, as the Lord appointed Moses.

— Exodus 36:15 —

¹⁶They made the oracle square and double, the length of a span, and the breadth of a span—double.

¹⁷And there was interwoven with it a woven work of four rows of stones, a series of stones, the first row, a sardius and topaz and emerald;