I actually just compared the noeud to frivoles now and they look amazing together! I can barely tell the difference in the gold. Already set complete! I feel stupid I forgot these would work together.Oh, right! I forgot you had the YG Frivole pave ones. Just wear those, they will look great. Both the ring and earrings have a rounded theme. Problem solved. Forget buying new earrings and get the ring. Keep in mind though this is coming from a person who doesn't like earrings but loves rings!
Butterfly will be cute and whimsical. Cosmos, I think you may find very heavy looking (that dreaded metal bezel).
Of these two, I vote the pink sapphire butterfly earrings.