And mount on it a setting of gemstones, four rows of stones: In the first row there shall be a ruby, a topaz, and an emerald;
The most considerable of the ornaments of the high priest was this breast-plate, a rich piece of cloth, curiously wrought with gold and purple, etc., two spans long and a span broad, so that, being doubled, it was a span square, Exo 28:16.
Commenting on Exodus 28:15-30
And the second row shall be an emerald, a sapphire, and a diamond. The first of these stones is by both the Targums of Onkelos and Jonathan rendered an "emerald", as by us; and which is described by Pliny (k) as of a green colour, exceeding delightful and pleasant, and to which he gives the third place among precious stones; though by many the stone...
Four rows of stones - With a name on each stone, making in all the twelve names of the twelve tribes. And as these were disposed according to their birth, Exo 28:10, we may suppose they stood in this order, the stones being placed also in the order in which they are produced, Exo 28:17-20 : - Four Rows of Stones First Row Sons of...