Shiva Purana
तप्तकंचननिर्व्यूहं रत्नस्तंभशतावृतम् ॥ वज्रकल्पितसोपानं विद्रुमस्तंभतोरणम् ॥ १५ ॥
It was decorated with burnt gold and surrounded by hundreds of gemstone pillars. The staircase was made of diamonds and the archway was made of coral pillars.
english translation
taptakaMcananirvyUhaM ratnastaMbhazatAvRtam ॥ vajrakalpitasopAnaM vidrumastaMbhatoraNam ॥ 15 ॥
hk transliteration by Sanscript