GOD'S WORD® Translation
The stones correspond to the 12 sons of Israel, by name, each stone engraved (like a signet ring) with the name of one of the 12 tribes.

American Standard Version
And the stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, every one according to his name, they shall be for the twelve tribes.

Berean Study Bible
The twelve stones are to correspond to the names of the sons of Israel, each engraved like a seal with the name of one of the twelve tribes.

Douay-Rheims Bible
And they shall have the names of the children of Israel: with twelve names shall they be engraved, each stone with the name of one according to the twelve tribes.

English Revised Version
And the stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, every one according to his name, they shall be for the twelve tribes.

King James Bible
And the stones shall be with the names of the children of Israel, twelve, according to their names, like the engravings of a signet; every one with his name shall they be according to the twelve tribes.

World English Bible
The stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, everyone according to his name, they shall be for the twelve tribes.

Young's Literal Translation
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 28:21 Additional Translations ...