Rashi

jasper Heb. כַּדְכֹד, a kind of precious stone. your windows Jonathan renders: your woodwork, and Menahem associated it with (Dan. 7:10): “ministered to Him (יְשַׁמְּשׁוּנֵהּ).” (Menahem, apparently renders: your utensils, i.e., the vessels that serve you.) And some interpret it as an expression of a sun (שֶׁמֶשׁ), windows through which the sun shines, and they make opposite it a barrier of kinds of colored glass for beauty, and Midrash Psalms interprets שִׁמְשׁוֹתַיִךְ as well as שֶׁמֶשׁ וּמָגֵן (Ps. 84:12) as “the pinnacles of the wall.” of carbuncle stones Heb. אֶקְדָּח. Jonathan renders: of gomer stones. Gumrin is the Aramaic translation of גֶּחָלִים, coals. He interprets אֶקְדָּח as an expression similar to (supra 50: 11) “who kindle (קֹדְחֵי) fire,” and they are a type of stones that burn like torches and that is the carbuncle (karbokle in O.F.), an expression of a coal. Others interpret it as an expression of a drill, i.e., huge stones of which the entire opening of the doorway is drilled, and the doorposts, the threshold, and the lintel are all hewn from the stone. of precious stones Desirable stones [from Jonathan].