Agree with @jblended and others. BulgariI like the Bvlgari ring most with your stack. It mirrors the shape and flow of the Juc and blends nicely with the gold/diamond motif you've got going on already. All while still adding interest and texture in the design. It feels like it brings more dimension and movement to the whole stack than the others.
To my eye, the clash rings (both options) form a "bookend" kind of effect with the clash bracelet, and the VCA weighs down the whole stack because it's quite thick.
Of course, all of them are gorgeous and you really can't go wrong, but the Bvlgari would be my first pick for you. It looks lovely on your hand.