Exodus 39:9

New King James Version

They made the breastplate square by doubling it; a span was its length and a span its width when doubled.

Cross References

Exodus 39:10

And they set in it four rows of stones: a row with a sardius, a topaz, and an emerald was the first row;

Exodus 39:8

And he made the breastplate, artistically woven like the workmanship of the ephod, of gold, blue, purple, and scarlet thread, and of fine woven linen.