I sometimes wear my frivole pave earrings with the Lotus, sometimes my magic alhambra 3 motif pave ones. I am not one who needs my sets to match. Plus the earrings are too far away to clash with the ring, if you know what I mean. As long as the earrings are not too different in colour, it should not be too bad.
There are no limitations to the Noeud since it has two different golds. You can wear PG or WG pave earrings. I tend to stick to VCA pieces because I feel most floral and butterfly ranges would compliment each other. I even wear my socrate 3 motif earrings with my Neoud ring sometimes. I don't have many pink gold pieces but I do like my magic alhambra 2 motif PG/GMOP/pave earrings, so I wear that with the Noeud sometimes. HTH