Onyx used in the Breastplate

Take two onyx stones and engrave on them the names of the sons of Israel: …

…and in the fourth row a beryl, an onyx, and a jasper. Mount these stones in gold filigree settings.

They mounted the onyx stones in gold filigree settings, engraved like a seal with the names of the sons of Israel.

…and the fourth row had a beryl, an onyx, and a jasper. These stones were mounted in gold filigree settings.