וַיַּ֧עַשׂ הַמֶּ֛לֶךְ כִּסֵּא־שֵׁ֖ן גָּד֑וֹל וַיְצַפֵּ֖הוּ זָהָ֥ב טָהֽוֹר׃
Moreover the king made a great throne of ivory, and overlaid it with pure gold.
Read kabbalistic (mystical) interpretation of II Chronicles 9:17: and classical mystical sources.