Cross reference
Exodus 35:9
9 and shoham stones, and stones for settings, for an ephod, and for a breastplate.
Exodus 25:5
5 and rams' skins made red, and badgers' skins, and shittim wood,
Exodus 28:9
9 `And thou hast taken the two shoham stones, and hast opened on them the names of the sons of Israel;
Exodus 28:17-21
17 `And thou hast set in it settings of stone, four rows of stone; a row of sardius, topaz, and carbuncle `is' the first row;
18 and the second row `is' emerald, sapphire, and diamond;
19 and the third row `is' opal, agate, and amethyst;
20 and the fourth row `is' beryl, and onyx, and jasper; embroidered with gold are they in their settings,
21 and the stones are according to the names of the sons of Israel, twelve, according to their names, openings of a signet, each by his name are they for the twelve tribes.
Exodus 39:6-14
6 And they prepare the shoham stones, set, embroidered `with' gold, opened with openings of a signet, by the names of the sons of Israel;
7 and he setteth them on the shoulders of the ephod -- stones of memorial for the sons of Israel, as Jehovah hath commanded Moses.
8 And he maketh the breastplate, work of a designer, like the work of the ephod, of gold, blue, and purple, and scarlet, and twined linen;
9 it hath been square; double they have made the breastplate, a span its length, and a span its breadth, doubled.
10 And they fill in it four rows of stones; a row of a sardius, a topaz, and a carbuncle `is' the one row;
11 and the second row an emerald, a sapphire, and a diamond;
12 and the third row an opal, an agate, and an amethyst;
13 and the fourth row a beryl, an onyx, and a jasper -- set, embroidered `with' gold, in their settings.
14 And the stones, according to the names of the sons of Israel, are twelve, according to their names, openings of a signet, each according to his name, for the twelve tribes.