It is to be square when doubled: one span in length and one span in width.
You shall make the breastplate of judgment, the work of a skillful workman. You shall make it in the same manner as the ephod. Of gold, of blue, and of purple, and of scarlet, and of fine twisted linen you shall make it.
You shall set in it four rows of stones. The first row shall be a sardius, a topaz, and an emerald;
They set in it four rows of stones. A row with a sardius, a topaz, and an emerald was the first row;