From recent additions the Falcon items come to mind first. Greaves sell for around 100-120kk on Antica.
Gnome items, mostly the legs, are also still very expensive ranging from 60-100kk.
Also rare boss drops such as the library ticket, elemental spikes, mysterious scroll, thunder hammer or the devileye score high prices depending on demand.
Other than that there are some items that only spawn after floor resets such as balloon cloth vary a lot in price. Obtainable items do not score those extremely high prices (anymore) since most of them can be farmed with ease (except for those you mentioned already + the other red/green egg, the third one).