What is the meaning of Revelation 21:21?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

And the twelve gates were twelve pearls, with each gate consisting of a single pearl. The main street of the city was pure gold, as clear as glass.

Berean Standard Bible (BSB)

The twelve gates were twelve pearls. Each one of the gates was made of one pearl. The street of the city was pure gold, like transparent glass.

World English Bible (WEB)

And{G2532} the twelve{G1427} gates{G4440} were twelve{G1427} pearls{G3135}; every{G1538}{G303} several{G1520} gate{G4440} was{G2258}{(G5713)} of{G1537} one{G1520} pearl{G3135}: and{G2532} the street{G4113} of the city{G4172} was pure{G2513} gold{G5553}, as it were{G5613} transparent{G1307} glass{G5194}.

Strong's King James

(21) The 12 gates are twelve pearls, each and every one of the gates, is from one pearl and the city street is pure gold, like transparent crystal-glass.

The F.O.G*

[21] The twelve gates were twelve pearls, each gate carved from a single massive pearl. The great street of the city was pure gold, transparent as glass.

The F.O.G Paraphrase

And the twelve gates are twelve pearls, each several one of the gates was of one pearl; and the broad-place of the city is pure gold—as transparent glass.

Young's Literal Translation