My engagement ring is a natural yellow sapphire with a diamond halo and pave band in white gold. My wedding ring is a plain white gold band. Just for fun, I have been thinking of purchasing a yellow gold moissanite pave band to stack on top of my engagement ring (I don't want to commit to diamond yet, as I don't know how much I will really want to wear this third ring). Will moissanite pave look strange stacked on top of diamond pave? I have never seen them together. If so, is there another diamond simulant I should consider? Thank you!