Śrīmad-Bhāgavatam · Text 10.33.6
Who is speaking and story frame
तत्रातिशुशुभे ताभिर्भगवान् देवकीसुत: ।
मध्ये मणीनां हैमानां महामरकतो यथा ॥ ६ ॥
tatrātiśuśubhe tābhir
bhagavān devakī-sutaḥ
madhye maṇīnāṁ haimānāṁ
mahā-marakato yathā
In the midst of the dancing gopīs, Lord Kṛṣṇa appeared most brilliant, like an exquisite sapphire in the midst of golden ornaments.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.