The Skanda Purana warns that no one should buy or sell shalagrama-shilas. One who puts a price on a shalagrama-shilas, sells a shalagrama-shila, gives his opinion on its value, or examines one with a view to estimate its sale value, all such people will live in hell until the time of universal destruction. ( Hari-bhakti-vilas)
Here is the description of Krishna's lotus eyes by Lilasuka (Srila Bilvamangala Thakur) in his famous Krsna-Karnamritam:
lilayitabhyam rasa-sitalabhyam nilarunabhyam nayanambujabhyam alokayedadbhuta-vibhramabhyam kale kada karunikah kisorah (verse 45)
When will the merciful adolescent Krishna look at me with His two eyes - sportive, cool with succulence, blue at the pupils and reddish at the corners, moving with a strange flutter?
" Her slender arms, creeper-slim, rhythmically wave and flow like lotus fibres in a current of water. Like the dancing top of the swaying vine, Her blue lotus eyes flash with enthralling glances. Her playful and alluring movements entice lovely meetings and fascinate Mohan Himself to take refuge in Her charms. When will She shower upon me Her sidelong glance of over-flowing grace? " fromRadha-kripa-kataksa by Srila Rupa Goswami