Revelation 21:11

21:11 The city possesses ¹  the glory of God; its brilliance is like a precious jewel, like a stone of crystal-clear jasper. ² 

Revelation 21:23

21:23 The city does not need the sun or the moon to shine on it, because the glory of God lights it up, and its lamp is the Lamb.

[21:11]  ¹ tn Grk “from God, having the glory of God.” Here a new sentence was started in the translation by supplying the words “the city” to refer back to the previous clause and translating the participle (“having”) as a finite verb.

[21:11]  ² tn On the term ἰάσπιδι (iaspidi) BDAG 465 s.v. ἴασπις states, “jasper, a precious stone found in various colors, mostly reddish, somet. green…brown, blue, yellow, and white. In antiquity the name was not limited to the variety of quartz now called jasper, but could designate any opaque precious stone. Rv 21:18f. W. λίθος 4:3 (TestSol C 11:8). λίθος ἴασπις κρυσταλλίζων a stone of crystal-clear jasper 21:11 (cp. Is 54:12); perh. the opal is meant here; acc. to some, the diamond.”